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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 9564 | . 2 ⊢ (𝑥 ∈ ω ↔ ∀𝑦(Lim 𝑦 → 𝑥 ∈ 𝑦)) | |
| 2 | 1 | eqabi 2876 | 1 ⊢ ω = {𝑥 ∣ ∀𝑦(Lim 𝑦 → 𝑥 ∈ 𝑦)} |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∀wal 1546 = wceq 1548 {cab 2719 Lim wlim 6315 ωcom 7810 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1803 ax-4 1817 ax-5 1918 ax-6 1975 ax-7 2016 ax-8 2123 ax-9 2131 ax-ext 2713 ax-sep 5221 ax-nul 5231 ax-pr 5365 ax-un 7682 ax-inf2 9557 |
| This theorem depends on definitions: df-bi 209 df-an 398 df-or 855 df-3or 1094 df-3an 1095 df-tru 1551 df-fal 1561 df-ex 1788 df-sb 2075 df-clab 2720 df-cleq 2733 df-clel 2816 df-ne 2937 df-ral 3056 df-rex 3066 df-rab 3394 df-v 3435 df-dif 3888 df-un 3890 df-in 3892 df-ss 3902 df-pss 3905 df-nul 4265 df-if 4458 df-pw 4534 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4842 df-br 5076 df-opab 5138 df-tr 5183 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-om 7811 |
| This theorem is referenced by: (None) |
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