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Mirrors > Home > MPE Home > Th. List > r1pwALT | Structured version Visualization version GIF version |
Description: Alternate shorter proof of r1pw 9603 based on the additional axioms ax-reg 9351 and ax-inf2 9399. (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 4549 | . . . . . 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 346 | . . . 4 ⊢ (𝑥 = 𝐴 → ((𝑥 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝑥 ∈ (𝑅1‘suc 𝐵)) ↔ (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵)))) |
5 | 4 | imbi2d 341 | . . 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 3436 | . . . . . . 7 ⊢ 𝑥 ∈ V | |
7 | 6 | rankr1a 9594 | . . . . . 6 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ (rank‘𝑥) ∈ 𝐵)) |
8 | eloni 6276 | . . . . . . 7 ⊢ (𝐵 ∈ On → Ord 𝐵) | |
9 | ordsucelsuc 7669 | . . . . . . 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 9601 | . . . . . 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 289 | . . . 4 ⊢ (𝐵 ∈ On → (𝑥 ∈ (𝑅1‘𝐵) ↔ (rank‘𝒫 𝑥) ∈ suc 𝐵)) |
15 | suceloni 7659 | . . . . 5 ⊢ (𝐵 ∈ On → suc 𝐵 ∈ On) | |
16 | 6 | pwex 5303 | . . . . . 6 ⊢ 𝒫 𝑥 ∈ V |
17 | 16 | rankr1a 9594 | . . . . 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 3505 | . 2 ⊢ (𝐴 ∈ V → (𝐵 ∈ On → (𝐴 ∈ (𝑅1‘𝐵) ↔ 𝒫 𝐴 ∈ (𝑅1‘suc 𝐵)))) |
21 | elex 3450 | . . . 4 ⊢ (𝐴 ∈ (𝑅1‘𝐵) → 𝐴 ∈ V) | |
22 | elex 3450 | . . . . 5 ⊢ (𝒫 𝐴 ∈ (𝑅1‘suc 𝐵) → 𝒫 𝐴 ∈ V) | |
23 | pwexb 7616 | . . . . 5 ⊢ (𝐴 ∈ V ↔ 𝒫 𝐴 ∈ V) | |
24 | 22, 23 | sylibr 233 | . . . 4 ⊢ (𝒫 𝐴 ∈ (𝑅1‘suc 𝐵) → 𝐴 ∈ V) |
25 | 21, 24 | pm5.21ni 379 | . . 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 2106 Vcvv 3432 𝒫 cpw 4533 Ord word 6265 Oncon0 6266 suc csuc 6268 ‘cfv 6433 𝑅1cr1 9520 rankcrnk 9521 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2709 ax-rep 5209 ax-sep 5223 ax-nul 5230 ax-pow 5288 ax-pr 5352 ax-un 7588 ax-reg 9351 ax-inf2 9399 |
This theorem depends on definitions: df-bi 206 df-an 397 df-or 845 df-3or 1087 df-3an 1088 df-tru 1542 df-fal 1552 df-ex 1783 df-nf 1787 df-sb 2068 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2816 df-nfc 2889 df-ne 2944 df-ral 3069 df-rex 3070 df-reu 3072 df-rab 3073 df-v 3434 df-sbc 3717 df-csb 3833 df-dif 3890 df-un 3892 df-in 3894 df-ss 3904 df-pss 3906 df-nul 4257 df-if 4460 df-pw 4535 df-sn 4562 df-pr 4564 df-op 4568 df-uni 4840 df-int 4880 df-iun 4926 df-br 5075 df-opab 5137 df-mpt 5158 df-tr 5192 df-id 5489 df-eprel 5495 df-po 5503 df-so 5504 df-fr 5544 df-we 5546 df-xp 5595 df-rel 5596 df-cnv 5597 df-co 5598 df-dm 5599 df-rn 5600 df-res 5601 df-ima 5602 df-pred 6202 df-ord 6269 df-on 6270 df-lim 6271 df-suc 6272 df-iota 6391 df-fun 6435 df-fn 6436 df-f 6437 df-f1 6438 df-fo 6439 df-f1o 6440 df-fv 6441 df-ov 7278 df-om 7713 df-2nd 7832 df-frecs 8097 df-wrecs 8128 df-recs 8202 df-rdg 8241 df-r1 9522 df-rank 9523 |
This theorem is referenced by: (None) |
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