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| Mirrors > Home > ILE Home > Th. List > 1e0p1 | GIF version | ||
| Description: The successor of zero. (Contributed by Mario Carneiro, 18-Feb-2014.) |
| Ref | Expression |
|---|---|
| 1e0p1 | ⊢ 1 = (0 + 1) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 0p1e1 9418 | . 2 ⊢ (0 + 1) = 1 | |
| 2 | 1 | eqcomi 2242 | 1 ⊢ 1 = (0 + 1) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: = wceq 1402 (class class class)co 6085 0cc0 8179 1c1 8180 + caddc 8182 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-4 1563 ax-17 1579 ax-ial 1587 ax-ext 2220 ax-1cn 8272 ax-icn 8274 ax-addcl 8275 ax-mulcl 8277 ax-addcom 8279 ax-i2m1 8284 ax-0id 8287 |
| This proof depends on definitions: df-bi 117 df-cleq 2231 df-clel 2234 |
| This theorem is used by: 6p5e11 9849 7p4e11 9852 8p3e11 9857 9p2e11 9863 fz1ssfz0 10524 fz0to3un2pr 10530 fzo01 10634 bcp1nk 11200 pfx1 11475 arisum2 12266 ege2le3 12438 ef4p 12461 efgt1p2 12462 efgt1p 12463 bitsmod 12723 prmdiv 13013 ballotfilemii 13246 ballotfilem1c 13251 ennnfonelem1 13298 mulgnn0p1 13936 dveflem 15827 birthdaylem2 16088 lgsdir2lem3 16149 lgseisenlem1 16189 |
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