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| Mirrors > Home > MPE Home > Th. List > 5p3e8 | Structured version Visualization version GIF version | ||
| Description: 5 + 3 = 8. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 5p3e8 | ⊢ (5 + 3) = 8 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-3 12307 | . . . 4 ⊢ 3 = (2 + 1) | |
| 2 | 1 | oveq2i 7425 | . . 3 ⊢ (5 + 3) = (5 + (2 + 1)) |
| 3 | 5cn 12332 | . . . 4 ⊢ 5 ∈ ℂ | |
| 4 | 2cn 12319 | . . . 4 ⊢ 2 ∈ ℂ | |
| 5 | ax-1cn 11161 | . . . 4 ⊢ 1 ∈ ℂ | |
| 6 | 3, 4, 5 | addassi 11222 | . . 3 ⊢ ((5 + 2) + 1) = (5 + (2 + 1)) |
| 7 | 2, 6 | eqtr4i 2796 | . 2 ⊢ (5 + 3) = ((5 + 2) + 1) |
| 8 | df-8 12312 | . . 3 ⊢ 8 = (7 + 1) | |
| 9 | 5p2e7 12399 | . . . 4 ⊢ (5 + 2) = 7 | |
| 10 | 9 | oveq1i 7424 | . . 3 ⊢ ((5 + 2) + 1) = (7 + 1) |
| 11 | 8, 10 | eqtr4i 2796 | . 2 ⊢ 8 = ((5 + 2) + 1) |
| 12 | 7, 11 | eqtr4i 2796 | 1 ⊢ (5 + 3) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1568 (class class class)co 7414 1c1 11104 + caddc 11106 2c2 12298 3c3 12299 5c5 12301 7c7 12303 8c8 12304 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1823 ax-4 1837 ax-5 1938 ax-6 1995 ax-7 2036 ax-8 2152 ax-9 2160 ax-ext 2742 ax-1cn 11161 ax-addcl 11163 ax-addass 11168 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1571 df-fal 1581 df-ex 1808 df-sb 2099 df-clab 2749 df-cleq 2762 df-clel 2845 df-rab 3424 df-v 3464 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 4878 df-br 5115 df-iota 6496 df-fv 6548 df-ov 7417 df-2 12306 df-3 12307 df-4 12308 df-5 12309 df-6 12310 df-7 12311 df-8 12312 |
| This theorem is referenced by: 5p4e9 12401 ef01bndlem 16243 2exp16 17153 1259lem2 17195 log2ublem3 27093 log2ub 27094 bposlem8 27435 lgsdir2lem1 27469 fib6 34766 235t711 43016 ex-decpmul 43017 8mod5e3 48052 fmtno5lem2 48255 fmtno5lem4 48257 257prm 48262 gbpart8 48482 8gbe 48487 evengpop3 48512 ackval3012 49421 |
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