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| Mirrors > Home > MPE Home > Th. List > dfom4 | Structured version Visualization version GIF version | ||
| Description: A simplification of df-om 7811 assuming the Axiom of Infinity. (Contributed by NM, 30-May-2003.) |
| Ref | Expression |
|---|---|
| dfom4 | ⊢ ω = {𝑥 ∣ ∀𝑦(Lim 𝑦 → 𝑥 ∈ 𝑦)} |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elom3 9560 | . 2 ⊢ (𝑥 ∈ ω ↔ ∀𝑦(Lim 𝑦 → 𝑥 ∈ 𝑦)) | |
| 2 | 1 | eqabi 2872 | 1 ⊢ ω = {𝑥 ∣ ∀𝑦(Lim 𝑦 → 𝑥 ∈ 𝑦)} |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∀wal 1540 = wceq 1542 {cab 2715 Lim wlim 6318 ωcom 7810 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pr 5370 ax-un 7682 ax-inf2 9553 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-pss 3910 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-tr 5194 df-eprel 5524 df-po 5532 df-so 5533 df-fr 5577 df-we 5579 df-ord 6320 df-on 6321 df-lim 6322 df-suc 6323 df-om 7811 |
| This theorem is referenced by: (None) |
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