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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 12304 | . . . 4 ⊢ 3 = (2 + 1) | |
| 2 | 1 | oveq2i 7422 | . . 3 ⊢ (5 + 3) = (5 + (2 + 1)) |
| 3 | 5cn 12329 | . . . 4 ⊢ 5 ∈ ℂ | |
| 4 | 2cn 12316 | . . . 4 ⊢ 2 ∈ ℂ | |
| 5 | ax-1cn 11158 | . . . 4 ⊢ 1 ∈ ℂ | |
| 6 | 3, 4, 5 | addassi 11219 | . . 3 ⊢ ((5 + 2) + 1) = (5 + (2 + 1)) |
| 7 | 2, 6 | eqtr4i 2795 | . 2 ⊢ (5 + 3) = ((5 + 2) + 1) |
| 8 | df-8 12309 | . . 3 ⊢ 8 = (7 + 1) | |
| 9 | 5p2e7 12396 | . . . 4 ⊢ (5 + 2) = 7 | |
| 10 | 9 | oveq1i 7421 | . . 3 ⊢ ((5 + 2) + 1) = (7 + 1) |
| 11 | 8, 10 | eqtr4i 2795 | . 2 ⊢ 8 = ((5 + 2) + 1) |
| 12 | 7, 11 | eqtr4i 2795 | 1 ⊢ (5 + 3) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 (class class class)co 7411 1c1 11101 + caddc 11103 2c2 12295 3c3 12296 5c5 12298 7c7 12300 8c8 12301 |
| 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 df-8 12309 |
| This theorem is referenced by: 5p4e9 12398 ef01bndlem 16240 2exp16 17150 1259lem2 17192 log2ublem3 27079 log2ub 27080 bposlem8 27421 lgsdir2lem1 27455 fib6 34741 235t711 42956 ex-decpmul 42957 8mod5e3 47992 fmtno5lem2 48195 fmtno5lem4 48197 257prm 48202 gbpart8 48422 8gbe 48427 evengpop3 48452 ackval3012 49357 |
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