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| Mirrors > Home > MPE Home > Th. List > Mathboxes > omiscard | Structured version Visualization version GIF version | ||
| Description: ω is a cardinal number. (Contributed by RP, 1-Oct-2023.) |
| Ref | Expression |
|---|---|
| omiscard | ⊢ ω ∈ ran card |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | omelon 9546 | . 2 ⊢ ω ∈ On | |
| 2 | nnsdom 9554 | . . . 4 ⊢ (𝑥 ∈ ω → 𝑥 ≺ ω) | |
| 3 | sdomnen 8913 | . . . 4 ⊢ (𝑥 ≺ ω → ¬ 𝑥 ≈ ω) | |
| 4 | 2, 3 | syl 17 | . . 3 ⊢ (𝑥 ∈ ω → ¬ 𝑥 ≈ ω) |
| 5 | 4 | rgen 3051 | . 2 ⊢ ∀𝑥 ∈ ω ¬ 𝑥 ≈ ω |
| 6 | elrncard 43644 | . 2 ⊢ (ω ∈ ran card ↔ (ω ∈ On ∧ ∀𝑥 ∈ ω ¬ 𝑥 ≈ ω)) | |
| 7 | 1, 5, 6 | mpbir2an 711 | 1 ⊢ ω ∈ ran card |
| Colors of variables: wff setvar class |
| Syntax hints: ¬ wn 3 ∈ wcel 2113 ∀wral 3049 class class class wbr 5095 ran crn 5622 Oncon0 6314 ωcom 7805 ≈ cen 8875 ≺ csdm 8877 cardccrd 9838 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-10 2146 ax-11 2162 ax-12 2182 ax-ext 2705 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7677 ax-inf2 9541 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-nf 1785 df-sb 2068 df-mo 2537 df-eu 2566 df-clab 2712 df-cleq 2725 df-clel 2808 df-nfc 2883 df-ne 2931 df-ral 3050 df-rex 3059 df-reu 3349 df-rab 3398 df-v 3440 df-sbc 3739 df-csb 3848 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-pss 3919 df-nul 4285 df-if 4477 df-pw 4553 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-int 4900 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5516 df-eprel 5521 df-po 5529 df-so 5530 df-fr 5574 df-we 5576 df-xp 5627 df-rel 5628 df-cnv 5629 df-co 5630 df-dm 5631 df-rn 5632 df-res 5633 df-ima 5634 df-ord 6317 df-on 6318 df-lim 6319 df-suc 6320 df-iota 6445 df-fun 6491 df-fn 6492 df-f 6493 df-f1 6494 df-fo 6495 df-f1o 6496 df-fv 6497 df-om 7806 df-1o 8394 df-er 8631 df-en 8879 df-dom 8880 df-sdom 8881 df-fin 8882 df-card 9842 |
| This theorem is referenced by: (None) |
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