Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > omsson | Structured version Visualization version GIF version |
Description: Omega is a subset of On. (Contributed by NM, 13-Jun-1994.) (Proof shortened by Andrew Salmon, 27-Aug-2011.) |
Ref | Expression |
---|---|
omsson | ⊢ ω ⊆ On |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | dfom2 6959 | . 2 ⊢ ω = {𝑥 ∈ On ∣ suc 𝑥 ⊆ {𝑦 ∈ On ∣ ¬ Lim 𝑦}} | |
2 | ssrab2 3650 | . 2 ⊢ {𝑥 ∈ On ∣ suc 𝑥 ⊆ {𝑦 ∈ On ∣ ¬ Lim 𝑦}} ⊆ On | |
3 | 1, 2 | eqsstri 3598 | 1 ⊢ ω ⊆ On |
Colors of variables: wff setvar class |
Syntax hints: ¬ wn 3 {crab 2900 ⊆ wss 3540 Oncon0 5640 Lim wlim 5641 suc csuc 5642 ωcom 6957 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-8 1979 ax-9 1986 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-sep 4709 ax-nul 4717 ax-pr 4833 ax-un 6847 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3or 1032 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-eu 2462 df-mo 2463 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-sbc 3403 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-pss 3556 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-tp 4130 df-op 4132 df-uni 4373 df-br 4584 df-opab 4644 df-tr 4681 df-eprel 4949 df-po 4959 df-so 4960 df-fr 4997 df-we 4999 df-ord 5643 df-on 5644 df-lim 5645 df-suc 5646 df-om 6958 |
This theorem is referenced by: limomss 6962 nnon 6963 ordom 6966 omssnlim 6971 omsinds 6976 nnunifi 8096 unblem1 8097 unblem2 8098 unblem3 8099 unblem4 8100 isfinite2 8103 card2inf 8343 ackbij1lem16 8940 ackbij1lem18 8942 fin23lem26 9030 fin23lem27 9033 isf32lem5 9062 fin1a2lem6 9110 pwfseqlem3 9361 tskinf 9470 grothomex 9530 ltsopi 9589 dmaddpi 9591 dmmulpi 9592 2ndcdisj 21069 finminlem 31482 |
Copyright terms: Public domain | W3C validator |