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| Mirrors > Home > MPE Home > Th. List > 5p2e7 | Structured version Visualization version GIF version | ||
| Description: 5 + 2 = 7. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 5p2e7 | ⊢ (5 + 2) = 7 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-2 12415 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7438 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12441 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11268 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11329 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2789 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12419 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7437 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2789 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12420 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2789 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 (class class class)co 7427 1c1 11211 + caddc 11213 2c2 12407 5c5 12410 6c6 12411 7c7 12412 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-1cn 11268 ax-addcl 11270 ax-addass 11275 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2838 df-rab 3416 df-v 3455 df-ss 3900 df-dif 4049 df-un 4153 df-nul 4281 df-if 4485 df-sn 4588 df-pr 4590 df-op 4838 df-uni 4870 df-br 5106 df-iota 6500 df-fv 6554 df-ov 7430 df-2 12415 df-3 12416 df-4 12417 df-5 12418 df-6 12419 df-7 12420 |
| This theorem is used by: 5p3e8 12509 17prm 17307 prmlem2 17310 37prm 17311 317prm 17316 1259lem1 17321 1259lem2 17322 1259lem4 17324 2503lem2 17328 4001lem1 17331 4001lem4 17334 log2ub 27289 bposlem8 27630 aks4d1p1p4 43261 aks4d1p1p7 43264 2p5e7 43458 2p7e9 43460 3p4e7 43461 ex-decpmul 43503 resqrtvalex 44785 imsqrtvalex 44786 fmtno5lem2 48778 257prm 48785 127prm 48823 |
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