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Mirrors > Home > MPE Home > Th. List > axdc4uz | Structured version Visualization version GIF version |
Description: A version of axdc4 9870 that works on an upper set of integers instead of ω. (Contributed by Mario Carneiro, 8-Jan-2014.) |
Ref | Expression |
---|---|
axdc4uz.1 | ⊢ 𝑀 ∈ ℤ |
axdc4uz.2 | ⊢ 𝑍 = (ℤ≥‘𝑀) |
Ref | Expression |
---|---|
axdc4uz | ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐶 ∈ 𝐴 ∧ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘)))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleq2 2899 | . . . . 5 ⊢ (𝑓 = 𝐴 → (𝐶 ∈ 𝑓 ↔ 𝐶 ∈ 𝐴)) | |
2 | xpeq2 5569 | . . . . . 6 ⊢ (𝑓 = 𝐴 → (𝑍 × 𝑓) = (𝑍 × 𝐴)) | |
3 | pweq 4540 | . . . . . . 7 ⊢ (𝑓 = 𝐴 → 𝒫 𝑓 = 𝒫 𝐴) | |
4 | 3 | difeq1d 4096 | . . . . . 6 ⊢ (𝑓 = 𝐴 → (𝒫 𝑓 ∖ {∅}) = (𝒫 𝐴 ∖ {∅})) |
5 | 2, 4 | feq23d 6502 | . . . . 5 ⊢ (𝑓 = 𝐴 → (𝐹:(𝑍 × 𝑓)⟶(𝒫 𝑓 ∖ {∅}) ↔ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅}))) |
6 | 1, 5 | anbi12d 632 | . . . 4 ⊢ (𝑓 = 𝐴 → ((𝐶 ∈ 𝑓 ∧ 𝐹:(𝑍 × 𝑓)⟶(𝒫 𝑓 ∖ {∅})) ↔ (𝐶 ∈ 𝐴 ∧ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅})))) |
7 | feq3 6490 | . . . . . 6 ⊢ (𝑓 = 𝐴 → (𝑔:𝑍⟶𝑓 ↔ 𝑔:𝑍⟶𝐴)) | |
8 | 7 | 3anbi1d 1434 | . . . . 5 ⊢ (𝑓 = 𝐴 → ((𝑔:𝑍⟶𝑓 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘))) ↔ (𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘))))) |
9 | 8 | exbidv 1916 | . . . 4 ⊢ (𝑓 = 𝐴 → (∃𝑔(𝑔:𝑍⟶𝑓 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘))) ↔ ∃𝑔(𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘))))) |
10 | 6, 9 | imbi12d 347 | . . 3 ⊢ (𝑓 = 𝐴 → (((𝐶 ∈ 𝑓 ∧ 𝐹:(𝑍 × 𝑓)⟶(𝒫 𝑓 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝑓 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘)))) ↔ ((𝐶 ∈ 𝐴 ∧ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘)))))) |
11 | axdc4uz.1 | . . . 4 ⊢ 𝑀 ∈ ℤ | |
12 | axdc4uz.2 | . . . 4 ⊢ 𝑍 = (ℤ≥‘𝑀) | |
13 | vex 3496 | . . . 4 ⊢ 𝑓 ∈ V | |
14 | eqid 2819 | . . . 4 ⊢ (rec((𝑦 ∈ V ↦ (𝑦 + 1)), 𝑀) ↾ ω) = (rec((𝑦 ∈ V ↦ (𝑦 + 1)), 𝑀) ↾ ω) | |
15 | eqid 2819 | . . . 4 ⊢ (𝑛 ∈ ω, 𝑥 ∈ 𝑓 ↦ (((rec((𝑦 ∈ V ↦ (𝑦 + 1)), 𝑀) ↾ ω)‘𝑛)𝐹𝑥)) = (𝑛 ∈ ω, 𝑥 ∈ 𝑓 ↦ (((rec((𝑦 ∈ V ↦ (𝑦 + 1)), 𝑀) ↾ ω)‘𝑛)𝐹𝑥)) | |
16 | 11, 12, 13, 14, 15 | axdc4uzlem 13343 | . . 3 ⊢ ((𝐶 ∈ 𝑓 ∧ 𝐹:(𝑍 × 𝑓)⟶(𝒫 𝑓 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝑓 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘)))) |
17 | 10, 16 | vtoclg 3566 | . 2 ⊢ (𝐴 ∈ 𝑉 → ((𝐶 ∈ 𝐴 ∧ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘))))) |
18 | 17 | 3impib 1111 | 1 ⊢ ((𝐴 ∈ 𝑉 ∧ 𝐶 ∈ 𝐴 ∧ 𝐹:(𝑍 × 𝐴)⟶(𝒫 𝐴 ∖ {∅})) → ∃𝑔(𝑔:𝑍⟶𝐴 ∧ (𝑔‘𝑀) = 𝐶 ∧ ∀𝑘 ∈ 𝑍 (𝑔‘(𝑘 + 1)) ∈ (𝑘𝐹(𝑔‘𝑘)))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 398 ∧ w3a 1082 = wceq 1531 ∃wex 1774 ∈ wcel 2108 ∀wral 3136 Vcvv 3493 ∖ cdif 3931 ∅c0 4289 𝒫 cpw 4537 {csn 4559 ↦ cmpt 5137 × cxp 5546 ↾ cres 5550 ⟶wf 6344 ‘cfv 6348 (class class class)co 7148 ∈ cmpo 7150 ωcom 7572 reccrdg 8037 1c1 10530 + caddc 10532 ℤcz 11973 ℤ≥cuz 12235 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1790 ax-4 1804 ax-5 1905 ax-6 1964 ax-7 2009 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2154 ax-12 2170 ax-ext 2791 ax-rep 5181 ax-sep 5194 ax-nul 5201 ax-pow 5257 ax-pr 5320 ax-un 7453 ax-inf2 9096 ax-dc 9860 ax-cnex 10585 ax-resscn 10586 ax-1cn 10587 ax-icn 10588 ax-addcl 10589 ax-addrcl 10590 ax-mulcl 10591 ax-mulrcl 10592 ax-mulcom 10593 ax-addass 10594 ax-mulass 10595 ax-distr 10596 ax-i2m1 10597 ax-1ne0 10598 ax-1rid 10599 ax-rnegex 10600 ax-rrecex 10601 ax-cnre 10602 ax-pre-lttri 10603 ax-pre-lttrn 10604 ax-pre-ltadd 10605 ax-pre-mulgt0 10606 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1083 df-3an 1084 df-tru 1534 df-ex 1775 df-nf 1779 df-sb 2064 df-mo 2616 df-eu 2648 df-clab 2798 df-cleq 2812 df-clel 2891 df-nfc 2961 df-ne 3015 df-nel 3122 df-ral 3141 df-rex 3142 df-reu 3143 df-rab 3145 df-v 3495 df-sbc 3771 df-csb 3882 df-dif 3937 df-un 3939 df-in 3941 df-ss 3950 df-pss 3952 df-nul 4290 df-if 4466 df-pw 4539 df-sn 4560 df-pr 4562 df-tp 4564 df-op 4566 df-uni 4831 df-iun 4912 df-br 5058 df-opab 5120 df-mpt 5138 df-tr 5164 df-id 5453 df-eprel 5458 df-po 5467 df-so 5468 df-fr 5507 df-we 5509 df-xp 5554 df-rel 5555 df-cnv 5556 df-co 5557 df-dm 5558 df-rn 5559 df-res 5560 df-ima 5561 df-pred 6141 df-ord 6187 df-on 6188 df-lim 6189 df-suc 6190 df-iota 6307 df-fun 6350 df-fn 6351 df-f 6352 df-f1 6353 df-fo 6354 df-f1o 6355 df-fv 6356 df-riota 7106 df-ov 7151 df-oprab 7152 df-mpo 7153 df-om 7573 df-1st 7681 df-2nd 7682 df-wrecs 7939 df-recs 8000 df-rdg 8038 df-1o 8094 df-er 8281 df-en 8502 df-dom 8503 df-sdom 8504 df-pnf 10669 df-mnf 10670 df-xr 10671 df-ltxr 10672 df-le 10673 df-sub 10864 df-neg 10865 df-nn 11631 df-n0 11890 df-z 11974 df-uz 12236 |
This theorem is referenced by: bcthlem5 23923 sdclem1 35010 |
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