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Theorem fin1a2lem12 9116
 Description: Lemma for fin1a2 9120. (Contributed by Stefan O'Rear, 8-Nov-2014.) (Revised by Mario Carneiro, 17-May-2015.)
Assertion
Ref Expression
fin1a2lem12 (((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) → ¬ 𝐵 ∈ FinIII)

Proof of Theorem fin1a2lem12
Dummy variables 𝑑 𝑒 𝑓 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 simpr 476 . . 3 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → 𝐵 ∈ FinIII)
2 simpll1 1093 . . . . . . 7 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → 𝐴 ⊆ 𝒫 𝐵)
32adantr 480 . . . . . 6 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑒 ∈ ω) → 𝐴 ⊆ 𝒫 𝐵)
4 ssrab2 3650 . . . . . . . 8 {𝑓𝐴𝑓𝑒} ⊆ 𝐴
54unissi 4397 . . . . . . 7 {𝑓𝐴𝑓𝑒} ⊆ 𝐴
6 sspwuni 4547 . . . . . . . 8 (𝐴 ⊆ 𝒫 𝐵 𝐴𝐵)
76biimpi 205 . . . . . . 7 (𝐴 ⊆ 𝒫 𝐵 𝐴𝐵)
85, 7syl5ss 3579 . . . . . 6 (𝐴 ⊆ 𝒫 𝐵 {𝑓𝐴𝑓𝑒} ⊆ 𝐵)
93, 8syl 17 . . . . 5 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑒 ∈ ω) → {𝑓𝐴𝑓𝑒} ⊆ 𝐵)
10 elpw2g 4754 . . . . . 6 (𝐵 ∈ FinIII → ( {𝑓𝐴𝑓𝑒} ∈ 𝒫 𝐵 {𝑓𝐴𝑓𝑒} ⊆ 𝐵))
1110ad2antlr 759 . . . . 5 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑒 ∈ ω) → ( {𝑓𝐴𝑓𝑒} ∈ 𝒫 𝐵 {𝑓𝐴𝑓𝑒} ⊆ 𝐵))
129, 11mpbird 246 . . . 4 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑒 ∈ ω) → {𝑓𝐴𝑓𝑒} ∈ 𝒫 𝐵)
13 eqid 2610 . . . 4 (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})
1412, 13fmptd 6292 . . 3 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}):ω⟶𝒫 𝐵)
15 vex 3176 . . . . . . . . . . 11 𝑑 ∈ V
1615sucex 6903 . . . . . . . . . 10 suc 𝑑 ∈ V
17 sssucid 5719 . . . . . . . . . 10 𝑑 ⊆ suc 𝑑
18 ssdomg 7887 . . . . . . . . . 10 (suc 𝑑 ∈ V → (𝑑 ⊆ suc 𝑑𝑑 ≼ suc 𝑑))
1916, 17, 18mp2 9 . . . . . . . . 9 𝑑 ≼ suc 𝑑
20 domtr 7895 . . . . . . . . 9 ((𝑓𝑑𝑑 ≼ suc 𝑑) → 𝑓 ≼ suc 𝑑)
2119, 20mpan2 703 . . . . . . . 8 (𝑓𝑑𝑓 ≼ suc 𝑑)
2221a1i 11 . . . . . . 7 (𝑓𝐴 → (𝑓𝑑𝑓 ≼ suc 𝑑))
2322ss2rabi 3647 . . . . . 6 {𝑓𝐴𝑓𝑑} ⊆ {𝑓𝐴𝑓 ≼ suc 𝑑}
24 uniss 4394 . . . . . 6 ({𝑓𝐴𝑓𝑑} ⊆ {𝑓𝐴𝑓 ≼ suc 𝑑} → {𝑓𝐴𝑓𝑑} ⊆ {𝑓𝐴𝑓 ≼ suc 𝑑})
2523, 24mp1i 13 . . . . 5 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑑 ∈ ω) → {𝑓𝐴𝑓𝑑} ⊆ {𝑓𝐴𝑓 ≼ suc 𝑑})
26 id 22 . . . . . 6 (𝑑 ∈ ω → 𝑑 ∈ ω)
27 pwexg 4776 . . . . . . . . 9 (𝐵 ∈ FinIII → 𝒫 𝐵 ∈ V)
2827adantl 481 . . . . . . . 8 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → 𝒫 𝐵 ∈ V)
2928, 2ssexd 4733 . . . . . . 7 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → 𝐴 ∈ V)
30 rabexg 4739 . . . . . . 7 (𝐴 ∈ V → {𝑓𝐴𝑓𝑑} ∈ V)
31 uniexg 6853 . . . . . . 7 ({𝑓𝐴𝑓𝑑} ∈ V → {𝑓𝐴𝑓𝑑} ∈ V)
3229, 30, 313syl 18 . . . . . 6 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → {𝑓𝐴𝑓𝑑} ∈ V)
33 breq2 4587 . . . . . . . . 9 (𝑒 = 𝑑 → (𝑓𝑒𝑓𝑑))
3433rabbidv 3164 . . . . . . . 8 (𝑒 = 𝑑 → {𝑓𝐴𝑓𝑒} = {𝑓𝐴𝑓𝑑})
3534unieqd 4382 . . . . . . 7 (𝑒 = 𝑑 {𝑓𝐴𝑓𝑒} = {𝑓𝐴𝑓𝑑})
3635, 13fvmptg 6189 . . . . . 6 ((𝑑 ∈ ω ∧ {𝑓𝐴𝑓𝑑} ∈ V) → ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘𝑑) = {𝑓𝐴𝑓𝑑})
3726, 32, 36syl2anr 494 . . . . 5 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑑 ∈ ω) → ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘𝑑) = {𝑓𝐴𝑓𝑑})
38 peano2 6978 . . . . . 6 (𝑑 ∈ ω → suc 𝑑 ∈ ω)
39 rabexg 4739 . . . . . . 7 (𝐴 ∈ V → {𝑓𝐴𝑓 ≼ suc 𝑑} ∈ V)
40 uniexg 6853 . . . . . . 7 ({𝑓𝐴𝑓 ≼ suc 𝑑} ∈ V → {𝑓𝐴𝑓 ≼ suc 𝑑} ∈ V)
4129, 39, 403syl 18 . . . . . 6 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → {𝑓𝐴𝑓 ≼ suc 𝑑} ∈ V)
42 breq2 4587 . . . . . . . . 9 (𝑒 = suc 𝑑 → (𝑓𝑒𝑓 ≼ suc 𝑑))
4342rabbidv 3164 . . . . . . . 8 (𝑒 = suc 𝑑 → {𝑓𝐴𝑓𝑒} = {𝑓𝐴𝑓 ≼ suc 𝑑})
4443unieqd 4382 . . . . . . 7 (𝑒 = suc 𝑑 {𝑓𝐴𝑓𝑒} = {𝑓𝐴𝑓 ≼ suc 𝑑})
4544, 13fvmptg 6189 . . . . . 6 ((suc 𝑑 ∈ ω ∧ {𝑓𝐴𝑓 ≼ suc 𝑑} ∈ V) → ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘suc 𝑑) = {𝑓𝐴𝑓 ≼ suc 𝑑})
4638, 41, 45syl2anr 494 . . . . 5 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑑 ∈ ω) → ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘suc 𝑑) = {𝑓𝐴𝑓 ≼ suc 𝑑})
4725, 37, 463sstr4d 3611 . . . 4 (((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) ∧ 𝑑 ∈ ω) → ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘𝑑) ⊆ ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘suc 𝑑))
4847ralrimiva 2949 . . 3 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ∀𝑑 ∈ ω ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘𝑑) ⊆ ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘suc 𝑑))
49 fin34i 9086 . . 3 ((𝐵 ∈ FinIII ∧ (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}):ω⟶𝒫 𝐵 ∧ ∀𝑑 ∈ ω ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘𝑑) ⊆ ((𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})‘suc 𝑑)) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}))
501, 14, 48, 49syl3anc 1318 . 2 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}))
51 fin1a2lem11 9115 . . . . . 6 (( [] Or 𝐴𝐴 ⊆ Fin) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
5251adantrr 749 . . . . 5 (( [] Or 𝐴 ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
53523ad2antl2 1217 . . . 4 (((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
5453adantr 480 . . 3 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
55 simpll3 1095 . . . . . 6 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ¬ 𝐴𝐴)
56 simplrr 797 . . . . . . 7 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → 𝐴 ≠ ∅)
57 sspwuni 4547 . . . . . . . . . . 11 (𝐴 ⊆ 𝒫 ∅ ↔ 𝐴 ⊆ ∅)
58 ss0b 3925 . . . . . . . . . . 11 ( 𝐴 ⊆ ∅ ↔ 𝐴 = ∅)
5957, 58bitri 263 . . . . . . . . . 10 (𝐴 ⊆ 𝒫 ∅ ↔ 𝐴 = ∅)
60 pw0 4283 . . . . . . . . . . . . 13 𝒫 ∅ = {∅}
6160sseq2i 3593 . . . . . . . . . . . 12 (𝐴 ⊆ 𝒫 ∅ ↔ 𝐴 ⊆ {∅})
62 sssn 4298 . . . . . . . . . . . 12 (𝐴 ⊆ {∅} ↔ (𝐴 = ∅ ∨ 𝐴 = {∅}))
6361, 62bitri 263 . . . . . . . . . . 11 (𝐴 ⊆ 𝒫 ∅ ↔ (𝐴 = ∅ ∨ 𝐴 = {∅}))
64 df-ne 2782 . . . . . . . . . . . 12 (𝐴 ≠ ∅ ↔ ¬ 𝐴 = ∅)
65 0ex 4718 . . . . . . . . . . . . . . . . 17 ∅ ∈ V
6665unisn 4387 . . . . . . . . . . . . . . . 16 {∅} = ∅
6765snid 4155 . . . . . . . . . . . . . . . 16 ∅ ∈ {∅}
6866, 67eqeltri 2684 . . . . . . . . . . . . . . 15 {∅} ∈ {∅}
69 unieq 4380 . . . . . . . . . . . . . . . 16 (𝐴 = {∅} → 𝐴 = {∅})
70 id 22 . . . . . . . . . . . . . . . 16 (𝐴 = {∅} → 𝐴 = {∅})
7169, 70eleq12d 2682 . . . . . . . . . . . . . . 15 (𝐴 = {∅} → ( 𝐴𝐴 {∅} ∈ {∅}))
7268, 71mpbiri 247 . . . . . . . . . . . . . 14 (𝐴 = {∅} → 𝐴𝐴)
7372orim2i 539 . . . . . . . . . . . . 13 ((𝐴 = ∅ ∨ 𝐴 = {∅}) → (𝐴 = ∅ ∨ 𝐴𝐴))
7473ord 391 . . . . . . . . . . . 12 ((𝐴 = ∅ ∨ 𝐴 = {∅}) → (¬ 𝐴 = ∅ → 𝐴𝐴))
7564, 74syl5bi 231 . . . . . . . . . . 11 ((𝐴 = ∅ ∨ 𝐴 = {∅}) → (𝐴 ≠ ∅ → 𝐴𝐴))
7663, 75sylbi 206 . . . . . . . . . 10 (𝐴 ⊆ 𝒫 ∅ → (𝐴 ≠ ∅ → 𝐴𝐴))
7759, 76sylbir 224 . . . . . . . . 9 ( 𝐴 = ∅ → (𝐴 ≠ ∅ → 𝐴𝐴))
7877com12 32 . . . . . . . 8 (𝐴 ≠ ∅ → ( 𝐴 = ∅ → 𝐴𝐴))
7978con3d 147 . . . . . . 7 (𝐴 ≠ ∅ → (¬ 𝐴𝐴 → ¬ 𝐴 = ∅))
8056, 55, 79sylc 63 . . . . . 6 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ¬ 𝐴 = ∅)
81 ioran 510 . . . . . 6 (¬ ( 𝐴𝐴 𝐴 = ∅) ↔ (¬ 𝐴𝐴 ∧ ¬ 𝐴 = ∅))
8255, 80, 81sylanbrc 695 . . . . 5 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ¬ ( 𝐴𝐴 𝐴 = ∅))
83 uniun 4392 . . . . . . . 8 (𝐴 ∪ {∅}) = ( 𝐴 {∅})
8466uneq2i 3726 . . . . . . . 8 ( 𝐴 {∅}) = ( 𝐴 ∪ ∅)
85 un0 3919 . . . . . . . 8 ( 𝐴 ∪ ∅) = 𝐴
8683, 84, 853eqtri 2636 . . . . . . 7 (𝐴 ∪ {∅}) = 𝐴
8786eleq1i 2679 . . . . . 6 ( (𝐴 ∪ {∅}) ∈ (𝐴 ∪ {∅}) ↔ 𝐴 ∈ (𝐴 ∪ {∅}))
88 elun 3715 . . . . . 6 ( 𝐴 ∈ (𝐴 ∪ {∅}) ↔ ( 𝐴𝐴 𝐴 ∈ {∅}))
8965elsn2 4158 . . . . . . 7 ( 𝐴 ∈ {∅} ↔ 𝐴 = ∅)
9089orbi2i 540 . . . . . 6 (( 𝐴𝐴 𝐴 ∈ {∅}) ↔ ( 𝐴𝐴 𝐴 = ∅))
9187, 88, 903bitri 285 . . . . 5 ( (𝐴 ∪ {∅}) ∈ (𝐴 ∪ {∅}) ↔ ( 𝐴𝐴 𝐴 = ∅))
9282, 91sylnibr 318 . . . 4 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ¬ (𝐴 ∪ {∅}) ∈ (𝐴 ∪ {∅}))
93 unieq 4380 . . . . . 6 (ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
94 id 22 . . . . . 6 (ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}) → ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}))
9593, 94eleq12d 2682 . . . . 5 (ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}) → ( ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ↔ (𝐴 ∪ {∅}) ∈ (𝐴 ∪ {∅})))
9695notbid 307 . . . 4 (ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}) → (¬ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ↔ ¬ (𝐴 ∪ {∅}) ∈ (𝐴 ∪ {∅})))
9792, 96syl5ibrcom 236 . . 3 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → (ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) = (𝐴 ∪ {∅}) → ¬ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒})))
9854, 97mpd 15 . 2 ((((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) ∧ 𝐵 ∈ FinIII) → ¬ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}) ∈ ran (𝑒 ∈ ω ↦ {𝑓𝐴𝑓𝑒}))
9950, 98pm2.65da 598 1 (((𝐴 ⊆ 𝒫 𝐵 ∧ [] Or 𝐴 ∧ ¬ 𝐴𝐴) ∧ (𝐴 ⊆ Fin ∧ 𝐴 ≠ ∅)) → ¬ 𝐵 ∈ FinIII)
 Colors of variables: wff setvar class Syntax hints:  ¬ wn 3   → wi 4   ↔ wb 195   ∨ wo 382   ∧ wa 383   ∧ w3a 1031   = wceq 1475   ∈ wcel 1977   ≠ wne 2780  ∀wral 2896  {crab 2900  Vcvv 3173   ∪ cun 3538   ⊆ wss 3540  ∅c0 3874  𝒫 cpw 4108  {csn 4125  ∪ cuni 4372   class class class wbr 4583   ↦ cmpt 4643   Or wor 4958  ran crn 5039  suc csuc 5642  ⟶wf 5800  ‘cfv 5804   [⊊] crpss 6834  ωcom 6957   ≼ cdom 7839  Fincfn 7841  FinIIIcfin3 8986 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 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-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-se 4998  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-rpss 6835  df-om 6958  df-wrecs 7294  df-recs 7355  df-rdg 7393  df-1o 7447  df-er 7629  df-en 7842  df-dom 7843  df-sdom 7844  df-fin 7845  df-wdom 8347  df-card 8648  df-fin4 8992  df-fin3 8993 This theorem is referenced by:  fin1a2s  9119
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