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Theorem ballotlemfc0 29881
Description: 𝐹 takes value 0 between negative and positive values. (Contributed by Thierry Arnoux, 24-Nov-2016.)
Hypotheses
Ref Expression
ballotth.m 𝑀 ∈ ℕ
ballotth.n 𝑁 ∈ ℕ
ballotth.o 𝑂 = {𝑐 ∈ 𝒫 (1...(𝑀 + 𝑁)) ∣ (#‘𝑐) = 𝑀}
ballotth.p 𝑃 = (𝑥 ∈ 𝒫 𝑂 ↦ ((#‘𝑥) / (#‘𝑂)))
ballotth.f 𝐹 = (𝑐𝑂 ↦ (𝑖 ∈ ℤ ↦ ((#‘((1...𝑖) ∩ 𝑐)) − (#‘((1...𝑖) ∖ 𝑐)))))
ballotlemfp1.c (𝜑𝐶𝑂)
ballotlemfp1.j (𝜑𝐽 ∈ ℕ)
ballotlemfc0.3 (𝜑 → ∃𝑖 ∈ (1...𝐽)((𝐹𝐶)‘𝑖) ≤ 0)
ballotlemfc0.4 (𝜑 → 0 < ((𝐹𝐶)‘𝐽))
Assertion
Ref Expression
ballotlemfc0 (𝜑 → ∃𝑘 ∈ (1...𝐽)((𝐹𝐶)‘𝑘) = 0)
Distinct variable groups:   𝑀,𝑐   𝑁,𝑐   𝑂,𝑐   𝑖,𝑀   𝑖,𝑁   𝑖,𝑂   𝑘,𝑀   𝑘,𝑁   𝑘,𝑂   𝑖,𝑐,𝐹   𝑘,𝐹   𝐶,𝑖   𝑖,𝐽   𝜑,𝑖,𝑘   𝑘,𝐽   𝐶,𝑘   𝜑,𝑘
Allowed substitution hints:   𝜑(𝑥,𝑐)   𝐶(𝑥,𝑐)   𝑃(𝑥,𝑖,𝑘,𝑐)   𝐹(𝑥)   𝐽(𝑥,𝑐)   𝑀(𝑥)   𝑁(𝑥)   𝑂(𝑥)

Proof of Theorem ballotlemfc0
Dummy variable 𝑗 is distinct from all other variables.
StepHypRef Expression
1 fveq2 6103 . . . . . . 7 (𝑖 = 𝑘 → ((𝐹𝐶)‘𝑖) = ((𝐹𝐶)‘𝑘))
21breq1d 4593 . . . . . 6 (𝑖 = 𝑘 → (((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘𝑘) ≤ 0))
32elrab 3331 . . . . 5 (𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ↔ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0))
43anbi1i 727 . . . 4 ((𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘) ↔ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘))
5 simprlr 799 . . . . 5 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘𝑘) ≤ 0)
6 simprl 790 . . . . . . . . . 10 ((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) → 𝑘 ∈ (1...𝐽))
76adantrr 749 . . . . . . . . 9 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → 𝑘 ∈ (1...𝐽))
8 fzssuz 12253 . . . . . . . . . . . . . 14 (1...𝐽) ⊆ (ℤ‘1)
9 uzssz 11583 . . . . . . . . . . . . . 14 (ℤ‘1) ⊆ ℤ
108, 9sstri 3577 . . . . . . . . . . . . 13 (1...𝐽) ⊆ ℤ
11 zssre 11261 . . . . . . . . . . . . 13 ℤ ⊆ ℝ
1210, 11sstri 3577 . . . . . . . . . . . 12 (1...𝐽) ⊆ ℝ
1312sseli 3564 . . . . . . . . . . 11 (𝑘 ∈ (1...𝐽) → 𝑘 ∈ ℝ)
1413ltp1d 10833 . . . . . . . . . 10 (𝑘 ∈ (1...𝐽) → 𝑘 < (𝑘 + 1))
15 1red 9934 . . . . . . . . . . . 12 (𝑘 ∈ (1...𝐽) → 1 ∈ ℝ)
1613, 15readdcld 9948 . . . . . . . . . . 11 (𝑘 ∈ (1...𝐽) → (𝑘 + 1) ∈ ℝ)
1713, 16ltnled 10063 . . . . . . . . . 10 (𝑘 ∈ (1...𝐽) → (𝑘 < (𝑘 + 1) ↔ ¬ (𝑘 + 1) ≤ 𝑘))
1814, 17mpbid 221 . . . . . . . . 9 (𝑘 ∈ (1...𝐽) → ¬ (𝑘 + 1) ≤ 𝑘)
197, 18syl 17 . . . . . . . 8 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ¬ (𝑘 + 1) ≤ 𝑘)
20 simprr 792 . . . . . . . . 9 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)
21 ballotlemfc0.4 . . . . . . . . . . . . . . . 16 (𝜑 → 0 < ((𝐹𝐶)‘𝐽))
2221adantr 480 . . . . . . . . . . . . . . 15 ((𝜑𝑘 = 𝐽) → 0 < ((𝐹𝐶)‘𝐽))
23 simpr 476 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘 = 𝐽) → 𝑘 = 𝐽)
2423fveq2d 6107 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘 = 𝐽) → ((𝐹𝐶)‘𝑘) = ((𝐹𝐶)‘𝐽))
2524breq2d 4595 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 = 𝐽) → (0 < ((𝐹𝐶)‘𝑘) ↔ 0 < ((𝐹𝐶)‘𝐽)))
26 ballotlemfp1.j . . . . . . . . . . . . . . . . . . . . . 22 (𝜑𝐽 ∈ ℕ)
27 elnnuz 11600 . . . . . . . . . . . . . . . . . . . . . 22 (𝐽 ∈ ℕ ↔ 𝐽 ∈ (ℤ‘1))
2826, 27sylib 207 . . . . . . . . . . . . . . . . . . . . 21 (𝜑𝐽 ∈ (ℤ‘1))
29 eluzfz2 12220 . . . . . . . . . . . . . . . . . . . . 21 (𝐽 ∈ (ℤ‘1) → 𝐽 ∈ (1...𝐽))
3028, 29syl 17 . . . . . . . . . . . . . . . . . . . 20 (𝜑𝐽 ∈ (1...𝐽))
31 eleq1 2676 . . . . . . . . . . . . . . . . . . . 20 (𝑘 = 𝐽 → (𝑘 ∈ (1...𝐽) ↔ 𝐽 ∈ (1...𝐽)))
3230, 31syl5ibrcom 236 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (𝑘 = 𝐽𝑘 ∈ (1...𝐽)))
3332anc2li 578 . . . . . . . . . . . . . . . . . 18 (𝜑 → (𝑘 = 𝐽 → (𝜑𝑘 ∈ (1...𝐽))))
34 1eluzge0 11608 . . . . . . . . . . . . . . . . . . . 20 1 ∈ (ℤ‘0)
35 fzss1 12251 . . . . . . . . . . . . . . . . . . . . 21 (1 ∈ (ℤ‘0) → (1...𝐽) ⊆ (0...𝐽))
3635sseld 3567 . . . . . . . . . . . . . . . . . . . 20 (1 ∈ (ℤ‘0) → (𝑘 ∈ (1...𝐽) → 𝑘 ∈ (0...𝐽)))
3734, 36ax-mp 5 . . . . . . . . . . . . . . . . . . 19 (𝑘 ∈ (1...𝐽) → 𝑘 ∈ (0...𝐽))
38 0red 9920 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑘 ∈ (0...𝐽)) → 0 ∈ ℝ)
39 ballotth.m . . . . . . . . . . . . . . . . . . . . . 22 𝑀 ∈ ℕ
40 ballotth.n . . . . . . . . . . . . . . . . . . . . . 22 𝑁 ∈ ℕ
41 ballotth.o . . . . . . . . . . . . . . . . . . . . . 22 𝑂 = {𝑐 ∈ 𝒫 (1...(𝑀 + 𝑁)) ∣ (#‘𝑐) = 𝑀}
42 ballotth.p . . . . . . . . . . . . . . . . . . . . . 22 𝑃 = (𝑥 ∈ 𝒫 𝑂 ↦ ((#‘𝑥) / (#‘𝑂)))
43 ballotth.f . . . . . . . . . . . . . . . . . . . . . 22 𝐹 = (𝑐𝑂 ↦ (𝑖 ∈ ℤ ↦ ((#‘((1...𝑖) ∩ 𝑐)) − (#‘((1...𝑖) ∖ 𝑐)))))
44 ballotlemfp1.c . . . . . . . . . . . . . . . . . . . . . . 23 (𝜑𝐶𝑂)
4544adantr 480 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑘 ∈ (0...𝐽)) → 𝐶𝑂)
46 elfzelz 12213 . . . . . . . . . . . . . . . . . . . . . . 23 (𝑘 ∈ (0...𝐽) → 𝑘 ∈ ℤ)
4746adantl 481 . . . . . . . . . . . . . . . . . . . . . 22 ((𝜑𝑘 ∈ (0...𝐽)) → 𝑘 ∈ ℤ)
4839, 40, 41, 42, 43, 45, 47ballotlemfelz 29879 . . . . . . . . . . . . . . . . . . . . 21 ((𝜑𝑘 ∈ (0...𝐽)) → ((𝐹𝐶)‘𝑘) ∈ ℤ)
4948zred 11358 . . . . . . . . . . . . . . . . . . . 20 ((𝜑𝑘 ∈ (0...𝐽)) → ((𝐹𝐶)‘𝑘) ∈ ℝ)
5038, 49ltnled 10063 . . . . . . . . . . . . . . . . . . 19 ((𝜑𝑘 ∈ (0...𝐽)) → (0 < ((𝐹𝐶)‘𝑘) ↔ ¬ ((𝐹𝐶)‘𝑘) ≤ 0))
5137, 50sylan2 490 . . . . . . . . . . . . . . . . . 18 ((𝜑𝑘 ∈ (1...𝐽)) → (0 < ((𝐹𝐶)‘𝑘) ↔ ¬ ((𝐹𝐶)‘𝑘) ≤ 0))
5233, 51syl6 34 . . . . . . . . . . . . . . . . 17 (𝜑 → (𝑘 = 𝐽 → (0 < ((𝐹𝐶)‘𝑘) ↔ ¬ ((𝐹𝐶)‘𝑘) ≤ 0)))
5352imp 444 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 = 𝐽) → (0 < ((𝐹𝐶)‘𝑘) ↔ ¬ ((𝐹𝐶)‘𝑘) ≤ 0))
5425, 53bitr3d 269 . . . . . . . . . . . . . . 15 ((𝜑𝑘 = 𝐽) → (0 < ((𝐹𝐶)‘𝐽) ↔ ¬ ((𝐹𝐶)‘𝑘) ≤ 0))
5522, 54mpbid 221 . . . . . . . . . . . . . 14 ((𝜑𝑘 = 𝐽) → ¬ ((𝐹𝐶)‘𝑘) ≤ 0)
5655ex 449 . . . . . . . . . . . . 13 (𝜑 → (𝑘 = 𝐽 → ¬ ((𝐹𝐶)‘𝑘) ≤ 0))
5756con2d 128 . . . . . . . . . . . 12 (𝜑 → (((𝐹𝐶)‘𝑘) ≤ 0 → ¬ 𝑘 = 𝐽))
58 nn1m1nn 10917 . . . . . . . . . . . . . . . . . . . . 21 (𝐽 ∈ ℕ → (𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ))
5926, 58syl 17 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → (𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ))
60 ballotlemfc0.3 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → ∃𝑖 ∈ (1...𝐽)((𝐹𝐶)‘𝑖) ≤ 0)
6160adantr 480 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝐽 = 1) → ∃𝑖 ∈ (1...𝐽)((𝐹𝐶)‘𝑖) ≤ 0)
62 oveq1 6556 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝐽 = 1 → (𝐽...𝐽) = (1...𝐽))
6362adantl 481 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝐽 = 1) → (𝐽...𝐽) = (1...𝐽))
6426nnzd 11357 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝜑𝐽 ∈ ℤ)
65 fzsn 12254 . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 (𝐽 ∈ ℤ → (𝐽...𝐽) = {𝐽})
6664, 65syl 17 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝜑 → (𝐽...𝐽) = {𝐽})
6766adantr 480 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 ((𝜑𝐽 = 1) → (𝐽...𝐽) = {𝐽})
6863, 67eqtr3d 2646 . . . . . . . . . . . . . . . . . . . . . . . . . 26 ((𝜑𝐽 = 1) → (1...𝐽) = {𝐽})
6968rexeqdv 3122 . . . . . . . . . . . . . . . . . . . . . . . . 25 ((𝜑𝐽 = 1) → (∃𝑖 ∈ (1...𝐽)((𝐹𝐶)‘𝑖) ≤ 0 ↔ ∃𝑖 ∈ {𝐽} ((𝐹𝐶)‘𝑖) ≤ 0))
7061, 69mpbid 221 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝐽 = 1) → ∃𝑖 ∈ {𝐽} ((𝐹𝐶)‘𝑖) ≤ 0)
71 fveq2 6103 . . . . . . . . . . . . . . . . . . . . . . . . . . . 28 (𝑖 = 𝐽 → ((𝐹𝐶)‘𝑖) = ((𝐹𝐶)‘𝐽))
7271breq1d 4593 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝑖 = 𝐽 → (((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘𝐽) ≤ 0))
7372rexsng 4166 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝐽 ∈ ℕ → (∃𝑖 ∈ {𝐽} ((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘𝐽) ≤ 0))
7426, 73syl 17 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑 → (∃𝑖 ∈ {𝐽} ((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘𝐽) ≤ 0))
7574adantr 480 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝐽 = 1) → (∃𝑖 ∈ {𝐽} ((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘𝐽) ≤ 0))
7670, 75mpbid 221 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑𝐽 = 1) → ((𝐹𝐶)‘𝐽) ≤ 0)
7721adantr 480 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝐽 = 1) → 0 < ((𝐹𝐶)‘𝐽))
78 0red 9920 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → 0 ∈ ℝ)
7939, 40, 41, 42, 43, 44, 64ballotlemfelz 29879 . . . . . . . . . . . . . . . . . . . . . . . . . . 27 (𝜑 → ((𝐹𝐶)‘𝐽) ∈ ℤ)
8079zred 11358 . . . . . . . . . . . . . . . . . . . . . . . . . 26 (𝜑 → ((𝐹𝐶)‘𝐽) ∈ ℝ)
8178, 80ltnled 10063 . . . . . . . . . . . . . . . . . . . . . . . . 25 (𝜑 → (0 < ((𝐹𝐶)‘𝐽) ↔ ¬ ((𝐹𝐶)‘𝐽) ≤ 0))
8281adantr 480 . . . . . . . . . . . . . . . . . . . . . . . 24 ((𝜑𝐽 = 1) → (0 < ((𝐹𝐶)‘𝐽) ↔ ¬ ((𝐹𝐶)‘𝐽) ≤ 0))
8377, 82mpbid 221 . . . . . . . . . . . . . . . . . . . . . . 23 ((𝜑𝐽 = 1) → ¬ ((𝐹𝐶)‘𝐽) ≤ 0)
8476, 83pm2.65da 598 . . . . . . . . . . . . . . . . . . . . . 22 (𝜑 → ¬ 𝐽 = 1)
85 biortn 420 . . . . . . . . . . . . . . . . . . . . . 22 𝐽 = 1 → ((𝐽 − 1) ∈ ℕ ↔ (¬ ¬ 𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ)))
8684, 85syl 17 . . . . . . . . . . . . . . . . . . . . 21 (𝜑 → ((𝐽 − 1) ∈ ℕ ↔ (¬ ¬ 𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ)))
87 notnotb 303 . . . . . . . . . . . . . . . . . . . . . 22 (𝐽 = 1 ↔ ¬ ¬ 𝐽 = 1)
8887orbi1i 541 . . . . . . . . . . . . . . . . . . . . 21 ((𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ) ↔ (¬ ¬ 𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ))
8986, 88syl6bbr 277 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → ((𝐽 − 1) ∈ ℕ ↔ (𝐽 = 1 ∨ (𝐽 − 1) ∈ ℕ)))
9059, 89mpbird 246 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (𝐽 − 1) ∈ ℕ)
91 elnnuz 11600 . . . . . . . . . . . . . . . . . . 19 ((𝐽 − 1) ∈ ℕ ↔ (𝐽 − 1) ∈ (ℤ‘1))
9290, 91sylib 207 . . . . . . . . . . . . . . . . . 18 (𝜑 → (𝐽 − 1) ∈ (ℤ‘1))
93 elfzp1 12261 . . . . . . . . . . . . . . . . . 18 ((𝐽 − 1) ∈ (ℤ‘1) → (𝑘 ∈ (1...((𝐽 − 1) + 1)) ↔ (𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = ((𝐽 − 1) + 1))))
9492, 93syl 17 . . . . . . . . . . . . . . . . 17 (𝜑 → (𝑘 ∈ (1...((𝐽 − 1) + 1)) ↔ (𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = ((𝐽 − 1) + 1))))
9526nncnd 10913 . . . . . . . . . . . . . . . . . . . 20 (𝜑𝐽 ∈ ℂ)
96 1cnd 9935 . . . . . . . . . . . . . . . . . . . 20 (𝜑 → 1 ∈ ℂ)
9795, 96npcand 10275 . . . . . . . . . . . . . . . . . . 19 (𝜑 → ((𝐽 − 1) + 1) = 𝐽)
9897oveq2d 6565 . . . . . . . . . . . . . . . . . 18 (𝜑 → (1...((𝐽 − 1) + 1)) = (1...𝐽))
9998eleq2d 2673 . . . . . . . . . . . . . . . . 17 (𝜑 → (𝑘 ∈ (1...((𝐽 − 1) + 1)) ↔ 𝑘 ∈ (1...𝐽)))
10097eqeq2d 2620 . . . . . . . . . . . . . . . . . 18 (𝜑 → (𝑘 = ((𝐽 − 1) + 1) ↔ 𝑘 = 𝐽))
101100orbi2d 734 . . . . . . . . . . . . . . . . 17 (𝜑 → ((𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = ((𝐽 − 1) + 1)) ↔ (𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = 𝐽)))
10294, 99, 1013bitr3d 297 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑘 ∈ (1...𝐽) ↔ (𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = 𝐽)))
103 orcom 401 . . . . . . . . . . . . . . . 16 ((𝑘 ∈ (1...(𝐽 − 1)) ∨ 𝑘 = 𝐽) ↔ (𝑘 = 𝐽𝑘 ∈ (1...(𝐽 − 1))))
104102, 103syl6bb 275 . . . . . . . . . . . . . . 15 (𝜑 → (𝑘 ∈ (1...𝐽) ↔ (𝑘 = 𝐽𝑘 ∈ (1...(𝐽 − 1)))))
105104biimpd 218 . . . . . . . . . . . . . 14 (𝜑 → (𝑘 ∈ (1...𝐽) → (𝑘 = 𝐽𝑘 ∈ (1...(𝐽 − 1)))))
106 pm5.6 949 . . . . . . . . . . . . . 14 (((𝑘 ∈ (1...𝐽) ∧ ¬ 𝑘 = 𝐽) → 𝑘 ∈ (1...(𝐽 − 1))) ↔ (𝑘 ∈ (1...𝐽) → (𝑘 = 𝐽𝑘 ∈ (1...(𝐽 − 1)))))
107105, 106sylibr 223 . . . . . . . . . . . . 13 (𝜑 → ((𝑘 ∈ (1...𝐽) ∧ ¬ 𝑘 = 𝐽) → 𝑘 ∈ (1...(𝐽 − 1))))
10890nnzd 11357 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (𝐽 − 1) ∈ ℤ)
109 1z 11284 . . . . . . . . . . . . . . . . . . 19 1 ∈ ℤ
110108, 109jctil 558 . . . . . . . . . . . . . . . . . 18 (𝜑 → (1 ∈ ℤ ∧ (𝐽 − 1) ∈ ℤ))
111 elfzelz 12213 . . . . . . . . . . . . . . . . . . 19 (𝑘 ∈ (1...(𝐽 − 1)) → 𝑘 ∈ ℤ)
112111, 109jctir 559 . . . . . . . . . . . . . . . . . 18 (𝑘 ∈ (1...(𝐽 − 1)) → (𝑘 ∈ ℤ ∧ 1 ∈ ℤ))
113 fzaddel 12246 . . . . . . . . . . . . . . . . . 18 (((1 ∈ ℤ ∧ (𝐽 − 1) ∈ ℤ) ∧ (𝑘 ∈ ℤ ∧ 1 ∈ ℤ)) → (𝑘 ∈ (1...(𝐽 − 1)) ↔ (𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1))))
114110, 112, 113syl2an 493 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘 ∈ (1...(𝐽 − 1))) → (𝑘 ∈ (1...(𝐽 − 1)) ↔ (𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1))))
115114biimp3a 1424 . . . . . . . . . . . . . . . 16 ((𝜑𝑘 ∈ (1...(𝐽 − 1)) ∧ 𝑘 ∈ (1...(𝐽 − 1))) → (𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1)))
1161153anidm23 1377 . . . . . . . . . . . . . . 15 ((𝜑𝑘 ∈ (1...(𝐽 − 1))) → (𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1)))
117 1p1e2 11011 . . . . . . . . . . . . . . . . . . . 20 (1 + 1) = 2
118117a1i 11 . . . . . . . . . . . . . . . . . . 19 (𝜑 → (1 + 1) = 2)
119118, 97oveq12d 6567 . . . . . . . . . . . . . . . . . 18 (𝜑 → ((1 + 1)...((𝐽 − 1) + 1)) = (2...𝐽))
120119eleq2d 2673 . . . . . . . . . . . . . . . . 17 (𝜑 → ((𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1)) ↔ (𝑘 + 1) ∈ (2...𝐽)))
121 2eluzge1 11610 . . . . . . . . . . . . . . . . . . 19 2 ∈ (ℤ‘1)
122 fzss1 12251 . . . . . . . . . . . . . . . . . . 19 (2 ∈ (ℤ‘1) → (2...𝐽) ⊆ (1...𝐽))
123121, 122ax-mp 5 . . . . . . . . . . . . . . . . . 18 (2...𝐽) ⊆ (1...𝐽)
124123sseli 3564 . . . . . . . . . . . . . . . . 17 ((𝑘 + 1) ∈ (2...𝐽) → (𝑘 + 1) ∈ (1...𝐽))
125120, 124syl6bi 242 . . . . . . . . . . . . . . . 16 (𝜑 → ((𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1)) → (𝑘 + 1) ∈ (1...𝐽)))
126125adantr 480 . . . . . . . . . . . . . . 15 ((𝜑𝑘 ∈ (1...(𝐽 − 1))) → ((𝑘 + 1) ∈ ((1 + 1)...((𝐽 − 1) + 1)) → (𝑘 + 1) ∈ (1...𝐽)))
127116, 126mpd 15 . . . . . . . . . . . . . 14 ((𝜑𝑘 ∈ (1...(𝐽 − 1))) → (𝑘 + 1) ∈ (1...𝐽))
128127ex 449 . . . . . . . . . . . . 13 (𝜑 → (𝑘 ∈ (1...(𝐽 − 1)) → (𝑘 + 1) ∈ (1...𝐽)))
129107, 128syld 46 . . . . . . . . . . . 12 (𝜑 → ((𝑘 ∈ (1...𝐽) ∧ ¬ 𝑘 = 𝐽) → (𝑘 + 1) ∈ (1...𝐽)))
13057, 129sylan2d 498 . . . . . . . . . . 11 (𝜑 → ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) → (𝑘 + 1) ∈ (1...𝐽)))
131130imp 444 . . . . . . . . . 10 ((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) → (𝑘 + 1) ∈ (1...𝐽))
132131adantrr 749 . . . . . . . . 9 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (𝑘 + 1) ∈ (1...𝐽))
133 fveq2 6103 . . . . . . . . . . . . . 14 (𝑖 = (𝑘 + 1) → ((𝐹𝐶)‘𝑖) = ((𝐹𝐶)‘(𝑘 + 1)))
134133breq1d 4593 . . . . . . . . . . . . 13 (𝑖 = (𝑘 + 1) → (((𝐹𝐶)‘𝑖) ≤ 0 ↔ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0))
135134elrab 3331 . . . . . . . . . . . 12 ((𝑘 + 1) ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ↔ ((𝑘 + 1) ∈ (1...𝐽) ∧ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0))
136 breq1 4586 . . . . . . . . . . . . 13 (𝑗 = (𝑘 + 1) → (𝑗𝑘 ↔ (𝑘 + 1) ≤ 𝑘))
137136rspccva 3281 . . . . . . . . . . . 12 ((∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘 ∧ (𝑘 + 1) ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}) → (𝑘 + 1) ≤ 𝑘)
138135, 137sylan2br 492 . . . . . . . . . . 11 ((∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘 ∧ ((𝑘 + 1) ∈ (1...𝐽) ∧ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0)) → (𝑘 + 1) ≤ 𝑘)
139138expr 641 . . . . . . . . . 10 ((∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘 ∧ (𝑘 + 1) ∈ (1...𝐽)) → (((𝐹𝐶)‘(𝑘 + 1)) ≤ 0 → (𝑘 + 1) ≤ 𝑘))
140139con3d 147 . . . . . . . . 9 ((∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘 ∧ (𝑘 + 1) ∈ (1...𝐽)) → (¬ (𝑘 + 1) ≤ 𝑘 → ¬ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0))
14120, 132, 140syl2anc 691 . . . . . . . 8 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (¬ (𝑘 + 1) ≤ 𝑘 → ¬ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0))
14219, 141mpd 15 . . . . . . 7 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ¬ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0)
143 simplrr 797 . . . . . . . . . . 11 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)
144132adantr 480 . . . . . . . . . . 11 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (𝑘 + 1) ∈ (1...𝐽))
145 simpll 786 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → 𝜑)
146131adantr 480 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (𝑘 + 1) ∈ (1...𝐽))
14735sseld 3567 . . . . . . . . . . . . . . 15 (1 ∈ (ℤ‘0) → ((𝑘 + 1) ∈ (1...𝐽) → (𝑘 + 1) ∈ (0...𝐽)))
14834, 146, 147mpsyl 66 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (𝑘 + 1) ∈ (0...𝐽))
14944adantr 480 . . . . . . . . . . . . . . . 16 ((𝜑 ∧ (𝑘 + 1) ∈ (0...𝐽)) → 𝐶𝑂)
150 elfzelz 12213 . . . . . . . . . . . . . . . . 17 ((𝑘 + 1) ∈ (0...𝐽) → (𝑘 + 1) ∈ ℤ)
151150adantl 481 . . . . . . . . . . . . . . . 16 ((𝜑 ∧ (𝑘 + 1) ∈ (0...𝐽)) → (𝑘 + 1) ∈ ℤ)
15239, 40, 41, 42, 43, 149, 151ballotlemfelz 29879 . . . . . . . . . . . . . . 15 ((𝜑 ∧ (𝑘 + 1) ∈ (0...𝐽)) → ((𝐹𝐶)‘(𝑘 + 1)) ∈ ℤ)
153152zred 11358 . . . . . . . . . . . . . 14 ((𝜑 ∧ (𝑘 + 1) ∈ (0...𝐽)) → ((𝐹𝐶)‘(𝑘 + 1)) ∈ ℝ)
154145, 148, 153syl2anc 691 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) ∈ ℝ)
155 0red 9920 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → 0 ∈ ℝ)
156 simplrr 797 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘𝑘) ≤ 0)
1576adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → 𝑘 ∈ (1...𝐽))
158157, 37syl 17 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → 𝑘 ∈ (0...𝐽))
159130imdistani 722 . . . . . . . . . . . . . . . . 17 ((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) → (𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)))
16044adantr 480 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) → 𝐶𝑂)
161 elfznn 12241 . . . . . . . . . . . . . . . . . . . . 21 ((𝑘 + 1) ∈ (1...𝐽) → (𝑘 + 1) ∈ ℕ)
162161adantl 481 . . . . . . . . . . . . . . . . . . . 20 ((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) → (𝑘 + 1) ∈ ℕ)
16339, 40, 41, 42, 43, 160, 162ballotlemfp1 29880 . . . . . . . . . . . . . . . . . . 19 ((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) → ((¬ (𝑘 + 1) ∈ 𝐶 → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1)) ∧ ((𝑘 + 1) ∈ 𝐶 → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1))))
164163simpld 474 . . . . . . . . . . . . . . . . . 18 ((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) → (¬ (𝑘 + 1) ∈ 𝐶 → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1)))
165164imp 444 . . . . . . . . . . . . . . . . 17 (((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1))
166159, 165sylan 487 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1))
167 elfzelz 12213 . . . . . . . . . . . . . . . . . . . . . 22 (𝑘 ∈ (1...𝐽) → 𝑘 ∈ ℤ)
168167zcnd 11359 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 ∈ (1...𝐽) → 𝑘 ∈ ℂ)
169 1cnd 9935 . . . . . . . . . . . . . . . . . . . . 21 (𝑘 ∈ (1...𝐽) → 1 ∈ ℂ)
170168, 169pncand 10272 . . . . . . . . . . . . . . . . . . . 20 (𝑘 ∈ (1...𝐽) → ((𝑘 + 1) − 1) = 𝑘)
171170fveq2d 6107 . . . . . . . . . . . . . . . . . . 19 (𝑘 ∈ (1...𝐽) → ((𝐹𝐶)‘((𝑘 + 1) − 1)) = ((𝐹𝐶)‘𝑘))
172171oveq1d 6564 . . . . . . . . . . . . . . . . . 18 (𝑘 ∈ (1...𝐽) → (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1) = (((𝐹𝐶)‘𝑘) − 1))
173172eqeq2d 2620 . . . . . . . . . . . . . . . . 17 (𝑘 ∈ (1...𝐽) → (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1) ↔ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1)))
174157, 173syl 17 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) − 1) ↔ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1)))
175166, 174mpbid 221 . . . . . . . . . . . . . . 15 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1))
176 0z 11265 . . . . . . . . . . . . . . . . . 18 0 ∈ ℤ
177 zlem1lt 11306 . . . . . . . . . . . . . . . . . 18 ((((𝐹𝐶)‘𝑘) ∈ ℤ ∧ 0 ∈ ℤ) → (((𝐹𝐶)‘𝑘) ≤ 0 ↔ (((𝐹𝐶)‘𝑘) − 1) < 0))
17848, 176, 177sylancl 693 . . . . . . . . . . . . . . . . 17 ((𝜑𝑘 ∈ (0...𝐽)) → (((𝐹𝐶)‘𝑘) ≤ 0 ↔ (((𝐹𝐶)‘𝑘) − 1) < 0))
179178adantr 480 . . . . . . . . . . . . . . . 16 (((𝜑𝑘 ∈ (0...𝐽)) ∧ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1)) → (((𝐹𝐶)‘𝑘) ≤ 0 ↔ (((𝐹𝐶)‘𝑘) − 1) < 0))
180 breq1 4586 . . . . . . . . . . . . . . . . 17 (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1) → (((𝐹𝐶)‘(𝑘 + 1)) < 0 ↔ (((𝐹𝐶)‘𝑘) − 1) < 0))
181180adantl 481 . . . . . . . . . . . . . . . 16 (((𝜑𝑘 ∈ (0...𝐽)) ∧ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1)) → (((𝐹𝐶)‘(𝑘 + 1)) < 0 ↔ (((𝐹𝐶)‘𝑘) − 1) < 0))
182179, 181bitr4d 270 . . . . . . . . . . . . . . 15 (((𝜑𝑘 ∈ (0...𝐽)) ∧ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) − 1)) → (((𝐹𝐶)‘𝑘) ≤ 0 ↔ ((𝐹𝐶)‘(𝑘 + 1)) < 0))
183145, 158, 175, 182syl21anc 1317 . . . . . . . . . . . . . 14 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (((𝐹𝐶)‘𝑘) ≤ 0 ↔ ((𝐹𝐶)‘(𝑘 + 1)) < 0))
184156, 183mpbid 221 . . . . . . . . . . . . 13 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) < 0)
185154, 155, 184ltled 10064 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0)
186185adantlrr 753 . . . . . . . . . . 11 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0)
187143, 144, 186, 138syl12anc 1316 . . . . . . . . . 10 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → (𝑘 + 1) ≤ 𝑘)
18819adantr 480 . . . . . . . . . 10 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ ¬ (𝑘 + 1) ∈ 𝐶) → ¬ (𝑘 + 1) ≤ 𝑘)
189187, 188condan 831 . . . . . . . . 9 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (𝑘 + 1) ∈ 𝐶)
190163simprd 478 . . . . . . . . . . . . 13 ((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) → ((𝑘 + 1) ∈ 𝐶 → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1)))
191190imp 444 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑘 + 1) ∈ (1...𝐽)) ∧ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1))
192159, 191sylan 487 . . . . . . . . . . 11 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1))
1936adantr 480 . . . . . . . . . . . 12 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ (𝑘 + 1) ∈ 𝐶) → 𝑘 ∈ (1...𝐽))
194171oveq1d 6564 . . . . . . . . . . . . 13 (𝑘 ∈ (1...𝐽) → (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1) = (((𝐹𝐶)‘𝑘) + 1))
195194eqeq2d 2620 . . . . . . . . . . . 12 (𝑘 ∈ (1...𝐽) → (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1) ↔ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1)))
196193, 195syl 17 . . . . . . . . . . 11 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ (𝑘 + 1) ∈ 𝐶) → (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘((𝑘 + 1) − 1)) + 1) ↔ ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1)))
197192, 196mpbid 221 . . . . . . . . . 10 (((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) ∧ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1))
198197adantlrr 753 . . . . . . . . 9 (((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) ∧ (𝑘 + 1) ∈ 𝐶) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1))
199189, 198mpdan 699 . . . . . . . 8 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1))
200 breq1 4586 . . . . . . . . 9 (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1) → (((𝐹𝐶)‘(𝑘 + 1)) ≤ 0 ↔ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
201200notbid 307 . . . . . . . 8 (((𝐹𝐶)‘(𝑘 + 1)) = (((𝐹𝐶)‘𝑘) + 1) → (¬ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0 ↔ ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
202199, 201syl 17 . . . . . . 7 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (¬ ((𝐹𝐶)‘(𝑘 + 1)) ≤ 0 ↔ ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
203142, 202mpbid 221 . . . . . 6 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0)
2046, 37syl 17 . . . . . . . . 9 ((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) → 𝑘 ∈ (0...𝐽))
205204, 48syldan 486 . . . . . . . 8 ((𝜑 ∧ (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0)) → ((𝐹𝐶)‘𝑘) ∈ ℤ)
206205adantrr 749 . . . . . . 7 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘𝑘) ∈ ℤ)
207 zleltp1 11305 . . . . . . . . 9 ((0 ∈ ℤ ∧ ((𝐹𝐶)‘𝑘) ∈ ℤ) → (0 ≤ ((𝐹𝐶)‘𝑘) ↔ 0 < (((𝐹𝐶)‘𝑘) + 1)))
208176, 207mpan 702 . . . . . . . 8 (((𝐹𝐶)‘𝑘) ∈ ℤ → (0 ≤ ((𝐹𝐶)‘𝑘) ↔ 0 < (((𝐹𝐶)‘𝑘) + 1)))
209 0red 9920 . . . . . . . . 9 (((𝐹𝐶)‘𝑘) ∈ ℤ → 0 ∈ ℝ)
210 zre 11258 . . . . . . . . . 10 (((𝐹𝐶)‘𝑘) ∈ ℤ → ((𝐹𝐶)‘𝑘) ∈ ℝ)
211 1red 9934 . . . . . . . . . 10 (((𝐹𝐶)‘𝑘) ∈ ℤ → 1 ∈ ℝ)
212210, 211readdcld 9948 . . . . . . . . 9 (((𝐹𝐶)‘𝑘) ∈ ℤ → (((𝐹𝐶)‘𝑘) + 1) ∈ ℝ)
213209, 212ltnled 10063 . . . . . . . 8 (((𝐹𝐶)‘𝑘) ∈ ℤ → (0 < (((𝐹𝐶)‘𝑘) + 1) ↔ ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
214208, 213bitrd 267 . . . . . . 7 (((𝐹𝐶)‘𝑘) ∈ ℤ → (0 ≤ ((𝐹𝐶)‘𝑘) ↔ ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
215206, 214syl 17 . . . . . 6 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (0 ≤ ((𝐹𝐶)‘𝑘) ↔ ¬ (((𝐹𝐶)‘𝑘) + 1) ≤ 0))
216203, 215mpbird 246 . . . . 5 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → 0 ≤ ((𝐹𝐶)‘𝑘))
217206zred 11358 . . . . . 6 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘𝑘) ∈ ℝ)
218 0red 9920 . . . . . 6 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → 0 ∈ ℝ)
219217, 218letri3d 10058 . . . . 5 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → (((𝐹𝐶)‘𝑘) = 0 ↔ (((𝐹𝐶)‘𝑘) ≤ 0 ∧ 0 ≤ ((𝐹𝐶)‘𝑘))))
2205, 216, 219mpbir2and 959 . . . 4 ((𝜑 ∧ ((𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) ≤ 0) ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘𝑘) = 0)
2214, 220sylan2b 491 . . 3 ((𝜑 ∧ (𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∧ ∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)) → ((𝐹𝐶)‘𝑘) = 0)
222 ssrab2 3650 . . . . . 6 {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ⊆ (1...𝐽)
223222, 12sstri 3577 . . . . 5 {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ⊆ ℝ
224223a1i 11 . . . 4 (𝜑 → {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ⊆ ℝ)
225 fzfi 12633 . . . . . 6 (1...𝐽) ∈ Fin
226 ssfi 8065 . . . . . 6 (((1...𝐽) ∈ Fin ∧ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ⊆ (1...𝐽)) → {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∈ Fin)
227225, 222, 226mp2an 704 . . . . 5 {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∈ Fin
228227a1i 11 . . . 4 (𝜑 → {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∈ Fin)
229 rabn0 3912 . . . . 5 ({𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ≠ ∅ ↔ ∃𝑖 ∈ (1...𝐽)((𝐹𝐶)‘𝑖) ≤ 0)
23060, 229sylibr 223 . . . 4 (𝜑 → {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ≠ ∅)
231 fimaxre 10847 . . . 4 (({𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ⊆ ℝ ∧ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∈ Fin ∧ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ≠ ∅) → ∃𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)
232224, 228, 230, 231syl3anc 1318 . . 3 (𝜑 → ∃𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}∀𝑗 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0}𝑗𝑘)
233221, 232reximddv 3001 . 2 (𝜑 → ∃𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ((𝐹𝐶)‘𝑘) = 0)
234 elrabi 3328 . . . 4 (𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} → 𝑘 ∈ (1...𝐽))
235234anim1i 590 . . 3 ((𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ∧ ((𝐹𝐶)‘𝑘) = 0) → (𝑘 ∈ (1...𝐽) ∧ ((𝐹𝐶)‘𝑘) = 0))
236235reximi2 2993 . 2 (∃𝑘 ∈ {𝑖 ∈ (1...𝐽) ∣ ((𝐹𝐶)‘𝑖) ≤ 0} ((𝐹𝐶)‘𝑘) = 0 → ∃𝑘 ∈ (1...𝐽)((𝐹𝐶)‘𝑘) = 0)
237233, 236syl 17 1 (𝜑 → ∃𝑘 ∈ (1...𝐽)((𝐹𝐶)‘𝑘) = 0)
Colors of variables: wff setvar class
Syntax hints:  ¬ wn 3  wi 4  wb 195  wo 382  wa 383   = wceq 1475  wcel 1977  wne 2780  wral 2896  wrex 2897  {crab 2900  cdif 3537  cin 3539  wss 3540  c0 3874  𝒫 cpw 4108  {csn 4125   class class class wbr 4583  cmpt 4643  cfv 5804  (class class class)co 6549  Fincfn 7841  cr 9814  0cc0 9815  1c1 9816   + caddc 9818   < clt 9953  cle 9954  cmin 10145   / cdiv 10563  cn 10897  2c2 10947  cz 11254  cuz 11563  ...cfz 12197  #chash 12979
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1713  ax-4 1728  ax-5 1827  ax-6 1875  ax-7 1922  ax-8 1979  ax-9 1986  ax-10 2006  ax-11 2021  ax-12 2034  ax-13 2234  ax-ext 2590  ax-rep 4699  ax-sep 4709  ax-nul 4717  ax-pow 4769  ax-pr 4833  ax-un 6847  ax-cnex 9871  ax-resscn 9872  ax-1cn 9873  ax-icn 9874  ax-addcl 9875  ax-addrcl 9876  ax-mulcl 9877  ax-mulrcl 9878  ax-mulcom 9879  ax-addass 9880  ax-mulass 9881  ax-distr 9882  ax-i2m1 9883  ax-1ne0 9884  ax-1rid 9885  ax-rnegex 9886  ax-rrecex 9887  ax-cnre 9888  ax-pre-lttri 9889  ax-pre-lttrn 9890  ax-pre-ltadd 9891  ax-pre-mulgt0 9892
This theorem depends on definitions:  df-bi 196  df-or 384  df-an 385  df-3or 1032  df-3an 1033  df-tru 1478  df-ex 1696  df-nf 1701  df-sb 1868  df-eu 2462  df-mo 2463  df-clab 2597  df-cleq 2603  df-clel 2606  df-nfc 2740  df-ne 2782  df-nel 2783  df-ral 2901  df-rex 2902  df-reu 2903  df-rmo 2904  df-rab 2905  df-v 3175  df-sbc 3403  df-csb 3500  df-dif 3543  df-un 3545  df-in 3547  df-ss 3554  df-pss 3556  df-nul 3875  df-if 4037  df-pw 4110  df-sn 4126  df-pr 4128  df-tp 4130  df-op 4132  df-uni 4373  df-int 4411  df-iun 4457  df-br 4584  df-opab 4644  df-mpt 4645  df-tr 4681  df-eprel 4949  df-id 4953  df-po 4959  df-so 4960  df-fr 4997  df-we 4999  df-xp 5044  df-rel 5045  df-cnv 5046  df-co 5047  df-dm 5048  df-rn 5049  df-res 5050  df-ima 5051  df-pred 5597  df-ord 5643  df-on 5644  df-lim 5645  df-suc 5646  df-iota 5768  df-fun 5806  df-fn 5807  df-f 5808  df-f1 5809  df-fo 5810  df-f1o 5811  df-fv 5812  df-riota 6511  df-ov 6552  df-oprab 6553  df-mpt2 6554  df-om 6958  df-1st 7059  df-2nd 7060  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-oadd 7451  df-er 7629  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-card 8648  df-cda 8873  df-pnf 9955  df-mnf 9956  df-xr 9957  df-ltxr 9958  df-le 9959  df-sub 10147  df-neg 10148  df-nn 10898  df-2 10956  df-n0 11170  df-z 11255  df-uz 11564  df-fz 12198  df-hash 12980
This theorem is referenced by:  ballotlem5  29888  ballotlemic  29895
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