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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 2815 | . 2 ⊢ (𝐴 ∈ 𝑉 → 𝐴 ∈ V) | |
| 2 | sucexb 4601 | . 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 2202 Vcvv 2803 suc csuc 4468 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-13 2204 ax-14 2205 ax-ext 2213 ax-sep 4212 ax-pow 4270 ax-pr 4305 ax-un 4536 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2364 df-rex 2517 df-v 2805 df-un 3205 df-in 3207 df-ss 3214 df-pw 3658 df-sn 3679 df-pr 3680 df-uni 3899 df-suc 4474 |
| This theorem is referenced by: sucex 4603 onsuc 4605 peano2 4699 sucinc2 6657 oav2 6674 |
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