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| Mirrors > Home > ILE Home > Th. List > sucex | Unicode version | ||
| Description: The successor of a set is a set. (Contributed by NM, 30-Aug-1993.) |
| Ref | Expression |
|---|---|
| sucex.1 |
|
| Ref | Expression |
|---|---|
| sucex |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | sucex.1 |
. 2
| |
| 2 | sucexg 4625 |
. 2
| |
| 3 | 1, 2 | ax-mp 5 |
1
|
| Colors of variables: wff set class |
| Syntax hints: |
| 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 2207 ax-14 2208 ax-ext 2216 ax-sep 4233 ax-pow 4292 ax-pr 4327 ax-un 4559 |
| This theorem depends on definitions: df-bi 117 df-tru 1401 df-nf 1510 df-sb 1812 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-rex 2528 df-v 2817 df-un 3218 df-in 3220 df-ss 3227 df-pw 3676 df-sn 3700 df-pr 3701 df-uni 3920 df-suc 4497 |
| This theorem is referenced by: finds 4727 finds2 4728 limom 4741 tfrexlem 6578 oafnex 6690 sucinc 6691 oacl 6706 nnsucelsuc 6737 phplem4 7122 php5 7125 phpm 7133 sucpw1nel3 7556 |
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