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Mirrors > Home > MPE Home > Th. List > r1pwALT | Structured version Visualization version GIF version |
Description: Alternate shorter proof of r1pw 9534 based on the additional axioms ax-reg 9281 and ax-inf2 9329. (Contributed by Raph Levien, 29-May-2004.) (Proof modification is discouraged.) (New usage is discouraged.) |
Ref | Expression |
---|---|
r1pwALT | ⊢ (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | eleq1 2826 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝑥 ∈ (𝑅1‘𝐵) ↔ 𝐴 ∈ (𝑅1‘𝐵))) | |
2 | pweq 4546 | . . . . . 6 ⊢ (𝑥 = 𝐴 → 𝒫 𝑥 = 𝒫 𝐴) | |
3 | 2 | eleq1d 2823 | . . . . 5 ⊢ (𝑥 = 𝐴 → (𝒫 𝑥 ∈ (𝑅1‘suc 𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵))) |
4 | 1, 3 | bibi12d 345 | . . . 4 ⊢ (𝑥 = 𝐴 → ((𝑥 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝑥 ∈ (𝑅1‘suc 𝐵)) ↔ (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵)))) |
5 | 4 | imbi2d 340 | . . 3 ⊢ (𝑥 = 𝐴 → ((𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝑥 ∈ (𝑅1‘suc 𝐵))) ↔ (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵))))) |
6 | vex 3426 | . . . . . . 7 ⊢ 𝑥 ∈ V | |
7 | 6 | rankr1a 9525 | . . . . . 6 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ (rank‘𝑥) ∈ 𝐵)) |
8 | eloni 6261 | . . . . . . 7 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
9 | ordsucelsuc 7644 | . . . . . . 7 ⊢ (Ord 𝐵 → ((rank‘𝑥) ∈ 𝐵 ↔ suc (rank‘𝑥) ∈ suc 𝐵)) | |
10 | 8, 9 | syl 17 | . . . . . 6 ⊢ (𝐵 ∈ On → ((rank‘𝑥) ∈ 𝐵 ↔ suc (rank‘𝑥) ∈ suc 𝐵)) |
11 | 7, 10 | bitrd 278 | . . . . 5 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ suc (rank‘𝑥) ∈ suc 𝐵)) |
12 | 6 | rankpw 9532 | . . . . . 6 ⊢ (rank‘𝒫 𝑥) = suc (rank‘𝑥) |
13 | 12 | eleq1i 2829 | . . . . 5 ⊢ ((rank‘𝒫 𝑥) ∈ suc 𝐵 ↔ suc (rank‘𝑥) ∈ suc 𝐵) |
14 | 11, 13 | bitr4di 288 | . . . 4 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ (rank‘𝒫 𝑥) ∈ suc 𝐵)) |
15 | suceloni 7635 | . . . . 5 ⊢ (𝐵 ∈ On → suc 𝐵 ∈ On) | |
16 | 6 | pwex 5298 | . . . . . 6 ⊢ 𝒫 𝑥 ∈ V |
17 | 16 | rankr1a 9525 | . . . . 5 ⊢ (suc 𝐵 ∈ On → (𝒫 𝑥 ∈ (𝑅1‘suc 𝐵) ↔ (rank‘𝒫 𝑥) ∈ suc 𝐵)) |
18 | 15, 17 | syl 17 | . . . 4 ⊢ (𝐵 ∈ On → (𝒫 𝑥 ∈ (𝑅1‘suc 𝐵) ↔ (rank‘𝒫 𝑥) ∈ suc 𝐵)) |
19 | 14, 18 | bitr4d 281 | . . 3 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝑥 ∈ (𝑅1‘suc 𝐵))) |
20 | 5, 19 | vtoclg 3495 | . 2 ⊢ (𝐴 ∈ V → (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵)))) |
21 | elex 3440 | . . . 4 ⊢ (𝐴 ∈ (𝑅1‘𝐵) → 𝐴 ∈ V) | |
22 | elex 3440 | . . . . 5 ⊢ (𝒫 𝐴 ∈ (𝑅1‘suc 𝐵) → 𝒫 𝐴 ∈ V) | |
23 | pwexb 7594 | . . . . 5 ⊢ (𝐴 ∈ V ↔ 𝒫 𝐴 ∈ V) | |
24 | 22, 23 | sylibr 233 | . . . 4 ⊢ (𝒫 𝐴 ∈ (𝑅1‘suc 𝐵) → 𝐴 ∈ V) |
25 | 21, 24 | pm5.21ni 378 | . . 3 ⊢ (¬ 𝐴 ∈ V → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵))) |
26 | 25 | a1d 25 | . 2 ⊢ (¬ 𝐴 ∈ V → (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵)))) |
27 | 20, 26 | pm2.61i 182 | 1 ⊢ (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵))) |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 → wi 4 ↔ wb 205 = wceq 1539 ∈ wcel 2108 Vcvv 3422 𝒫 cpw 4530 Ord word 6250 Oncon0 6251 suc csuc 6253 ‘cfv 6418 𝑅1cr1 9451 rankcrnk 9452 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pow 5283 ax-pr 5347 ax-un 7566 ax-reg 9281 ax-inf2 9329 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-pss 3902 df-nul 4254 df-if 4457 df-pw 4532 df-sn 4559 df-pr 4561 df-tp 4563 df-op 4565 df-uni 4837 df-int 4877 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-tr 5188 df-id 5480 df-eprel 5486 df-po 5494 df-so 5495 df-fr 5535 df-we 5537 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-pred 6191 df-ord 6254 df-on 6255 df-lim 6256 df-suc 6257 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-om 7688 df-2nd 7805 df-frecs 8068 df-wrecs 8099 df-recs 8173 df-rdg 8212 df-r1 9453 df-rank 9454 |
This theorem is referenced by: (None) |
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