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| Mirrors > Home > MPE Home > Th. List > 7p1e8 | Structured version Visualization version GIF version | ||
| Description: 7 + 1 = 8. (Contributed by Mario Carneiro, 18-Apr-2015.) |
| Ref | Expression |
|---|---|
| 7p1e8 | ⊢ (7 + 1) = 8 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-8 12355 | . 2 ⊢ 8 = (7 + 1) | |
| 2 | 1 | eqcomi 2769 | 1 ⊢ (7 + 1) = 8 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7415 1c1 11147 + caddc 11149 7c7 12346 8c8 12347 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2155 ax-ext 2732 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1813 df-cleq 2752 df-8 12355 |
| This theorem is used by: 7t4e28 12874 9t9e81 12892 s8len 14996 prmlem2 17234 83prm 17237 163prm 17239 317prm 17240 631prm 17241 2503lem2 17252 2503lem3 17253 4001lem2 17256 4001lem3 17257 4001prm 17259 hgt750lem 35189 hgt750lem2 35190 lcmineqlem 42932 1p7e8 43144 3cubeslem3l 43545 3cubeslem3r 43546 resqrtvalex 44499 imsqrtvalex 44500 fmtno5lem4 48473 fmtno4nprmfac193 48491 m3prm 48509 m7prm 48517 nnsum3primesle9 48724 bgoldbtbndlem1 48735 |
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