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Mirrors > Home > ILE Home > Th. List > omsson | GIF version |
Description: Omega is a subset of On. (Contributed by NM, 13-Jun-1994.) |
Ref | Expression |
---|---|
omsson | ⊢ ω ⊆ On |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | nnon 4643 | . 2 ⊢ (𝑥 ∈ ω → 𝑥 ∈ On) | |
2 | 1 | ssriv 3184 | 1 ⊢ ω ⊆ On |
Colors of variables: wff set class |
Syntax hints: ⊆ wss 3154 Oncon0 4395 ωcom 4623 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-in1 615 ax-in2 616 ax-io 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-13 2166 ax-14 2167 ax-ext 2175 ax-sep 4148 ax-nul 4156 ax-pow 4204 ax-pr 4239 ax-un 4465 ax-iinf 4621 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-dif 3156 df-un 3158 df-in 3160 df-ss 3167 df-nul 3448 df-pw 3604 df-sn 3625 df-pr 3626 df-uni 3837 df-int 3872 df-tr 4129 df-iord 4398 df-on 4400 df-suc 4403 df-iom 4624 |
This theorem is referenced by: frecfnom 6456 frecrdg 6463 dmaddpi 7387 dmmulpi 7388 |
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