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| Mirrors > Home > MPE Home > Th. List > ssrankr1 | Structured version Visualization version GIF version | ||
| Description: A relationship between an ordinal number less than or equal to a rank, and the cumulative hierarchy of sets 𝑅1. Proposition 9.15(3) of [TakeutiZaring] p. 79. (Contributed by NM, 8-Oct-2003.) (Revised by Mario Carneiro, 17-Nov-2014.) |
| Ref | Expression |
|---|---|
| rankid.1 | ⊢ 𝐴 ∈ V |
| Ref | Expression |
|---|---|
| ssrankr1 | ⊢ (𝐵 ∈ On → (𝐵 ⊆ (rank‘𝐴) ↔ ¬ 𝐴 ∈ (𝑅1‘𝐵))) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rankid.1 | . . . 4 ⊢ 𝐴 ∈ V | |
| 2 | unir1 9785 | . . . 4 ⊢ ∪ (𝑅1 “ On) = V | |
| 3 | 1, 2 | eleqtrri 2868 | . . 3 ⊢ 𝐴 ∈ ∪ (𝑅1 “ On) |
| 4 | r1fnon 9739 | . . . . . 6 ⊢ 𝑅1 Fn On | |
| 5 | fndm 6639 | . . . . . 6 ⊢ (𝑅1 Fn On → dom 𝑅1 = On) | |
| 6 | 4, 5 | ax-mp 5 | . . . . 5 ⊢ dom 𝑅1 = On |
| 7 | 6 | eleq2i 2861 | . . . 4 ⊢ (𝐵 ∈ dom 𝑅1 ↔ 𝐵 ∈ On) |
| 8 | 7 | biimpri 231 | . . 3 ⊢ (𝐵 ∈ On → 𝐵 ∈ dom 𝑅1) |
| 9 | rankr1clem 9792 | . . 3 ⊢ ((𝐴 ∈ ∪ (𝑅1 “ On) ∧ 𝐵 ∈ dom 𝑅1) → (¬ 𝐴 ∈ (𝑅1‘𝐵) ↔ 𝐵 ⊆ (rank‘𝐴))) | |
| 10 | 3, 8, 9 | sylancr 598 | . 2 ⊢ (𝐵 ∈ On → (¬ 𝐴 ∈ (𝑅1‘𝐵) ↔ 𝐵 ⊆ (rank‘𝐴))) |
| 11 | 10 | bicomd 226 | 1 ⊢ (𝐵 ∈ On → (𝐵 ⊆ (rank‘𝐴) ↔ ¬ 𝐴 ∈ (𝑅1‘𝐵))) |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 → wi 4 ↔ wb 209 = wceq 1567 ∈ wcel 2149 Vcvv 3463 ⊆ wss 3913 ∪ cuni 4876 dom cdm 5662 “ cima 5665 Oncon0 6361 Fn wfn 6532 ‘cfv 6537 𝑅1cr1 9734 rankcrnk 9735 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-reg 9554 ax-inf2 9610 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-int 4917 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7414 df-om 7863 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-r1 9736 df-rank 9737 |
| This theorem is referenced by: rankr1a 9808 onvf1odlem4 35489 |
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