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| Mirrors > Home > ILE Home > Th. List > sucexg | GIF version | ||
| Description: The successor of a set is a set (generalization). (Contributed by NM, 5-Jun-1994.) |
| Ref | Expression |
|---|---|
| sucexg | ⊢ (𝐴 ∈ 𝑉 → suc 𝐴 ∈ V) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elex 2785 | . 2 ⊢ (𝐴 ∈ 𝑉 → 𝐴 ∈ V) | |
| 2 | sucexb 4553 | . 2 ⊢ (𝐴 ∈ V ↔ suc 𝐴 ∈ V) | |
| 3 | 1, 2 | sylib 122 | 1 ⊢ (𝐴 ∈ 𝑉 → suc 𝐴 ∈ V) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2177 Vcvv 2773 suc csuc 4420 |
| 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-io 711 ax-5 1471 ax-7 1472 ax-gen 1473 ax-ie1 1517 ax-ie2 1518 ax-8 1528 ax-10 1529 ax-11 1530 ax-i12 1531 ax-bndl 1533 ax-4 1534 ax-17 1550 ax-i9 1554 ax-ial 1558 ax-i5r 1559 ax-13 2179 ax-14 2180 ax-ext 2188 ax-sep 4170 ax-pow 4226 ax-pr 4261 ax-un 4488 |
| This theorem depends on definitions: df-bi 117 df-tru 1376 df-nf 1485 df-sb 1787 df-clab 2193 df-cleq 2199 df-clel 2202 df-nfc 2338 df-rex 2491 df-v 2775 df-un 3174 df-in 3176 df-ss 3183 df-pw 3623 df-sn 3644 df-pr 3645 df-uni 3857 df-suc 4426 |
| This theorem is referenced by: sucex 4555 onsuc 4557 peano2 4651 sucinc2 6545 oav2 6562 |
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