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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 12303 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7422 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12329 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11158 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11219 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2795 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12307 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7421 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2795 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12308 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2795 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 (class class class)co 7411 1c1 11101 + caddc 11103 2c2 12295 5c5 12298 6c6 12299 7c7 12300 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 ax-1cn 11158 ax-addcl 11160 ax-addass 11165 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-iota 6493 df-fv 6545 df-ov 7414 df-2 12303 df-3 12304 df-4 12305 df-5 12306 df-6 12307 df-7 12308 |
| This theorem is referenced by: 5p3e8 12397 17prm 17177 prmlem2 17180 37prm 17181 317prm 17186 1259lem1 17191 1259lem2 17192 1259lem4 17194 2503lem2 17198 4001lem1 17201 4001lem4 17204 log2ub 27080 bposlem8 27421 aks4d1p1p4 42728 aks4d1p1p7 42731 ex-decpmul 42957 resqrtvalex 44263 imsqrtvalex 44264 fmtno5lem2 48195 257prm 48202 127prm 48240 |
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