| Metamath Proof Explorer |
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Related theorems Unicode version |
| Description: The successor of a set is a set. |
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| Step | Hyp | Ref | Expression |
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| 3 | 1, 2 | ax-mp 7 |
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| Colors of variables: wff set class |
| Syntax hints: |
| This theorem is referenced by: orduninsuc 3114 onzsl 3117 finds 3156 findsg 3157 finds2 3158 findes 3160 tfindsg 3162 tfindes 3164 tfinds2 3165 oasuc 4163 phplem4 4511 php 4513 unifiOLD 4557 inf0 4606 inf3lem1 4613 dfom3 4630 infensuc 4638 r1pwcl 4687 rankval4 4702 indpi 5034 |
| This theorem was proved from axioms: ax-1 4 ax-2 5 ax-3 6 ax-mp 7 ax-7 962 ax-gen 963 ax-8 964 ax-10 966 ax-11 967 ax-12 968 ax-13 969 ax-14 970 ax-17 971 ax-4 973 ax-5o 975 ax-6o 978 ax-9o 1123 ax-10o 1140 ax-16 1210 ax-11o 1218 ax-ext 1459 ax-sep 2703 ax-pow 2742 ax-pr 2779 ax-un 2866 |
| This theorem depends on definitions: df-bi 147 df-or 224 df-an 225 df-ex 981 df-sb 1172 df-eu 1382 df-mo 1383 df-clab 1464 df-cleq 1469 df-clel 1472 df-ne 1587 df-v 1812 df-dif 2049 df-un 2050 df-in 2051 df-ss 2053 df-nul 2281 df-pw 2402 df-sn 2412 df-pr 2413 df-uni 2504 df-suc 2954 |