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Theorem isercolllem1 14243

Description: Lemma for isercoll 14246. (Contributed by Mario Carneiro, 6-Apr-2015.)

**Hypotheses**
Ref	Expression
isercoll.z	⊢ 𝑍 = (ℤ_≥‘𝑀)
isercoll.m	⊢ (𝜑 → 𝑀 ∈ ℤ)
isercoll.g	⊢ (𝜑 → 𝐺:ℕ⟶𝑍)
isercoll.i	⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))

**Assertion**
Ref	Expression
isercolllem1	⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → (𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)))

Distinct variable groups: 𝜑,𝑘 𝑘,𝐺 𝑘,𝑀 Allowed substitution hints: 𝑆(𝑘) 𝑍(𝑘)

Proof of Theorem isercolllem1 Dummy variables 𝑛 𝑥 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		isercoll.z	. . . . . . . . . . 11 ⊢ 𝑍 = (ℤ_≥‘𝑀)
2		uzssz 11583	. . . . . . . . . . 11 ⊢ (ℤ_≥‘𝑀) ⊆ ℤ
3	1, 2	eqsstri 3598	. . . . . . . . . 10 ⊢ 𝑍 ⊆ ℤ
4		zssre 11261	. . . . . . . . . 10 ⊢ ℤ ⊆ ℝ
5	3, 4	sstri 3577	. . . . . . . . 9 ⊢ 𝑍 ⊆ ℝ
6		isercoll.g	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐺:ℕ⟶𝑍)
7	6	ad2antrr 758	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝐺:ℕ⟶𝑍)
8		simplrl 796	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℕ)
9	7, 8	ffvelrnd 6268	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) ∈ 𝑍)
10	5, 9	sseldi 3566	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) ∈ ℝ)
11		simplrr 797	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℕ)
12	11	nnred 10912	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℝ)
13	10, 12	resubcld 10337	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) ∈ ℝ)
14	8	nnred 10912	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℝ)
15	10, 14	resubcld 10337	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑥) ∈ ℝ)
16	7, 11	ffvelrnd 6268	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑦) ∈ 𝑍)
17	5, 16	sseldi 3566	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑦) ∈ ℝ)
18	17, 12	resubcld 10337	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑦) − 𝑦) ∈ ℝ)
19		simpr 476	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 < 𝑦)
20	14, 12, 10, 19	ltsub2dd 10519	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑥) − 𝑥))
21	8	nnzd 11357	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ∈ ℤ)
22	11	nnzd 11357	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ ℤ)
23	14, 12, 19	ltled 10064	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑥 ≤ 𝑦)
24		eluz2 11569	. . . . . . . . . 10 ⊢ (𝑦 ∈ (ℤ_≥‘𝑥) ↔ (𝑥 ∈ ℤ ∧ 𝑦 ∈ ℤ ∧ 𝑥 ≤ 𝑦))
25	21, 22, 23, 24	syl3anbrc 1239	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝑦 ∈ (ℤ_≥‘𝑥))
26		elfzuz 12209	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑥...𝑦) → 𝑘 ∈ (ℤ_≥‘𝑥))
27		eluznn 11634	. . . . . . . . . . . 12 ⊢ ((𝑥 ∈ ℕ ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → 𝑘 ∈ ℕ)
28	8, 27	sylan 487	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → 𝑘 ∈ ℕ)
29		fveq2 6103	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = 𝑘 → (𝐺‘𝑛) = (𝐺‘𝑘))
30		id 22	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = 𝑘 → 𝑛 = 𝑘)
31	29, 30	oveq12d 6567	. . . . . . . . . . . . . 14 ⊢ (𝑛 = 𝑘 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑘) − 𝑘))
32		eqid 2610	. . . . . . . . . . . . . 14 ⊢ (𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛)) = (𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))
33		ovex 6577	. . . . . . . . . . . . . 14 ⊢ ((𝐺‘𝑘) − 𝑘) ∈ V
34	31, 32, 33	fvmpt 6191	. . . . . . . . . . . . 13 ⊢ (𝑘 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) = ((𝐺‘𝑘) − 𝑘))
35	34	adantl 481	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) = ((𝐺‘𝑘) − 𝑘))
36	7	ffvelrnda 6267	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ 𝑍)
37	5, 36	sseldi 3566	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ ℝ)
38		nnre 10904	. . . . . . . . . . . . . 14 ⊢ (𝑘 ∈ ℕ → 𝑘 ∈ ℝ)
39	38	adantl 481	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℝ)
40	37, 39	resubcld 10337	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ∈ ℝ)
41	35, 40	eqeltrd 2688	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
42	28, 41	syldan 486	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
43	26, 42	sylan2 490	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (𝑥...𝑦)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ∈ ℝ)
44		elfzuz 12209	. . . . . . . . . 10 ⊢ (𝑘 ∈ (𝑥...(𝑦 − 1)) → 𝑘 ∈ (ℤ_≥‘𝑥))
45		peano2nn 10909	. . . . . . . . . . . . . . . . 17 ⊢ (𝑘 ∈ ℕ → (𝑘 + 1) ∈ ℕ)
46		ffvelrn 6265	. . . . . . . . . . . . . . . . 17 ⊢ ((𝐺:ℕ⟶𝑍 ∧ (𝑘 + 1) ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ 𝑍)
47	7, 45, 46	syl2an 493	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ 𝑍)
48	5, 47	sseldi 3566	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℝ)
49		peano2rem 10227	. . . . . . . . . . . . . . 15 ⊢ ((𝐺‘(𝑘 + 1)) ∈ ℝ → ((𝐺‘(𝑘 + 1)) − 1) ∈ ℝ)
50	48, 49	syl 17	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘(𝑘 + 1)) − 1) ∈ ℝ)
51		simpll 786	. . . . . . . . . . . . . . . 16 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → 𝜑)
52		isercoll.i	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))
53	51, 52	sylan 487	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) < (𝐺‘(𝑘 + 1)))
54	3, 36	sseldi 3566	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ∈ ℤ)
55	3, 47	sseldi 3566	. . . . . . . . . . . . . . . 16 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℤ)
56		zltlem1 11307	. . . . . . . . . . . . . . . 16 ⊢ (((𝐺‘𝑘) ∈ ℤ ∧ (𝐺‘(𝑘 + 1)) ∈ ℤ) → ((𝐺‘𝑘) < (𝐺‘(𝑘 + 1)) ↔ (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1)))
57	54, 55, 56	syl2anc 691	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) < (𝐺‘(𝑘 + 1)) ↔ (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1)))
58	53, 57	mpbid 221	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘𝑘) ≤ ((𝐺‘(𝑘 + 1)) − 1))
59	37, 50, 39, 58	lesub1dd 10522	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ≤ (((𝐺‘(𝑘 + 1)) − 1) − 𝑘))
60	48	recnd 9947	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝐺‘(𝑘 + 1)) ∈ ℂ)
61		1cnd 9935	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 1 ∈ ℂ)
62	39	recnd 9947	. . . . . . . . . . . . . . 15 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → 𝑘 ∈ ℂ)
63	60, 61, 62	sub32d 10303	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 1) − 𝑘) = (((𝐺‘(𝑘 + 1)) − 𝑘) − 1))
64	60, 62, 61	subsub4d 10302	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 𝑘) − 1) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
65	63, 64	eqtrd 2644	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (((𝐺‘(𝑘 + 1)) − 1) − 𝑘) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
66	59, 65	breqtrd 4609	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝐺‘𝑘) − 𝑘) ≤ ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
67	45	adantl 481	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → (𝑘 + 1) ∈ ℕ)
68		fveq2 6103	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = (𝑘 + 1) → (𝐺‘𝑛) = (𝐺‘(𝑘 + 1)))
69		id 22	. . . . . . . . . . . . . . 15 ⊢ (𝑛 = (𝑘 + 1) → 𝑛 = (𝑘 + 1))
70	68, 69	oveq12d 6567	. . . . . . . . . . . . . 14 ⊢ (𝑛 = (𝑘 + 1) → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
71		ovex 6577	. . . . . . . . . . . . . 14 ⊢ ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)) ∈ V
72	70, 32, 71	fvmpt 6191	. . . . . . . . . . . . 13 ⊢ ((𝑘 + 1) ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
73	67, 72	syl 17	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)) = ((𝐺‘(𝑘 + 1)) − (𝑘 + 1)))
74	66, 35, 73	3brtr4d 4615	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ ℕ) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
75	28, 74	syldan 486	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (ℤ_≥‘𝑥)) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
76	44, 75	sylan2 490	. . . . . . . . 9 ⊢ ((((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) ∧ 𝑘 ∈ (𝑥...(𝑦 − 1))) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑘) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘(𝑘 + 1)))
77	25, 43, 76	monoord 12693	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) ≤ ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦))
78		fveq2 6103	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑥 → (𝐺‘𝑛) = (𝐺‘𝑥))
79		id 22	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑥 → 𝑛 = 𝑥)
80	78, 79	oveq12d 6567	. . . . . . . . . 10 ⊢ (𝑛 = 𝑥 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑥) − 𝑥))
81		ovex 6577	. . . . . . . . . 10 ⊢ ((𝐺‘𝑥) − 𝑥) ∈ V
82	80, 32, 81	fvmpt 6191	. . . . . . . . 9 ⊢ (𝑥 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) = ((𝐺‘𝑥) − 𝑥))
83	8, 82	syl 17	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑥) = ((𝐺‘𝑥) − 𝑥))
84		fveq2 6103	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑦 → (𝐺‘𝑛) = (𝐺‘𝑦))
85		id 22	. . . . . . . . . . 11 ⊢ (𝑛 = 𝑦 → 𝑛 = 𝑦)
86	84, 85	oveq12d 6567	. . . . . . . . . 10 ⊢ (𝑛 = 𝑦 → ((𝐺‘𝑛) − 𝑛) = ((𝐺‘𝑦) − 𝑦))
87		ovex 6577	. . . . . . . . . 10 ⊢ ((𝐺‘𝑦) − 𝑦) ∈ V
88	86, 32, 87	fvmpt 6191	. . . . . . . . 9 ⊢ (𝑦 ∈ ℕ → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦) = ((𝐺‘𝑦) − 𝑦))
89	11, 88	syl 17	. . . . . . . 8 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝑛 ∈ ℕ ↦ ((𝐺‘𝑛) − 𝑛))‘𝑦) = ((𝐺‘𝑦) − 𝑦))
90	77, 83, 89	3brtr3d 4614	. . . . . . 7 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑥) ≤ ((𝐺‘𝑦) − 𝑦))
91	13, 15, 18, 20, 90	ltletrd 10076	. . . . . 6 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑦) − 𝑦))
92	10, 17, 12	ltsub1d 10515	. . . . . 6 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → ((𝐺‘𝑥) < (𝐺‘𝑦) ↔ ((𝐺‘𝑥) − 𝑦) < ((𝐺‘𝑦) − 𝑦)))
93	91, 92	mpbird 246	. . . . 5 ⊢ (((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) ∧ 𝑥 < 𝑦) → (𝐺‘𝑥) < (𝐺‘𝑦))
94	93	ex 449	. . . 4 ⊢ ((𝜑 ∧ (𝑥 ∈ ℕ ∧ 𝑦 ∈ ℕ)) → (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
95	94	ralrimivva 2954	. . 3 ⊢ (𝜑 → ∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
96		ssralv 3629	. . . . 5 ⊢ (𝑆 ⊆ ℕ → (∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
97	96	ralimdv 2946	. . . 4 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ ℕ ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
98		ssralv 3629	. . . 4 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
99	97, 98	syld 46	. . 3 ⊢ (𝑆 ⊆ ℕ → (∀𝑥 ∈ ℕ ∀𝑦 ∈ ℕ (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
100	95, 99	mpan9 485	. 2 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦)))
101		nnssre 10901	. . . . 5 ⊢ ℕ ⊆ ℝ
102		ltso 9997	. . . . 5 ⊢ < Or ℝ
103		soss 4977	. . . . 5 ⊢ (ℕ ⊆ ℝ → ( < Or ℝ → < Or ℕ))
104	101, 102, 103	mp2 9	. . . 4 ⊢ < Or ℕ
105	104	a1i 11	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → < Or ℕ)
106		soss 4977	. . . . 5 ⊢ (𝑍 ⊆ ℝ → ( < Or ℝ → < Or 𝑍))
107	5, 102, 106	mp2 9	. . . 4 ⊢ < Or 𝑍
108	107	a1i 11	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → < Or 𝑍)
109	6	adantr 480	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → 𝐺:ℕ⟶𝑍)
110		simpr 476	. . 3 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → 𝑆 ⊆ ℕ)
111		soisores 6477	. . 3 ⊢ ((( < Or ℕ ∧ < Or 𝑍) ∧ (𝐺:ℕ⟶𝑍 ∧ 𝑆 ⊆ ℕ)) → ((𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)) ↔ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
112	105, 108, 109, 110, 111	syl22anc 1319	. 2 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → ((𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)) ↔ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑆 (𝑥 < 𝑦 → (𝐺‘𝑥) < (𝐺‘𝑦))))
113	100, 112	mpbird 246	1 ⊢ ((𝜑 ∧ 𝑆 ⊆ ℕ) → (𝐺 ↾ 𝑆) Isom < , < (𝑆, (𝐺 “ 𝑆)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 195 ∧ wa 383 = wceq 1475 ∈ wcel 1977 ∀wral 2896 ⊆ wss 3540 class class class wbr 4583 ↦ cmpt 4643 Or wor 4958 ↾ cres 5040 “ cima 5041 ⟶wf 5800 ‘cfv 5804 Isom wiso 5805 (class class class)co 6549 ℝcr 9814 1c1 9816 + caddc 9818 < clt 9953 ≤ cle 9954 − cmin 10145 ℕcn 10897 ℤcz 11254 ℤ_≥cuz 11563 ...cfz 12197

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-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-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-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-isom 5813 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-er 7629 df-en 7842 df-dom 7843 df-sdom 7844 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-n0 11170 df-z 11255 df-uz 11564 df-fz 12198

This theorem is referenced by: isercolllem2 14244 isercolllem3 14245 isercoll 14246

W3C validator