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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 9420 | . 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 9858 7p4e11 9861 8p3e11 9866 9p2e11 9872 fz1ssfz0 10534 fz0to3un2pr 10540 fzo01 10644 bcp1nk 11214 pfx1 11489 arisum2 12282 ege2le3 12454 ef4p 12477 efgt1p2 12478 efgt1p 12479 bitsmod 12739 prmdiv 13033 11prm 13249 631prm 13261 ballotfilemii 13295 ballotfilem1c 13300 ennnfonelem1 13347 mulgnn0p1 13985 dveflem 15876 birthdaylem2 16145 ppi2 16179 ppiublem2 16193 ppiqub 16194 bclbnd 16205 bposlem2 16210 lgsdir2lem3 16247 lgseisenlem1 16287 |
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