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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 12405 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7431 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12431 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11258 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11319 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2787 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12409 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7430 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2787 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12410 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2787 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7420 1c1 11201 + caddc 11203 2c2 12397 5c5 12400 6c6 12401 7c7 12402 |
| 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-8 2147 ax-9 2155 ax-ext 2733 ax-1cn 11258 ax-addcl 11260 ax-addass 11265 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2740 df-cleq 2753 df-clel 2836 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-iota 6494 df-fv 6546 df-ov 7423 df-2 12405 df-3 12406 df-4 12407 df-5 12408 df-6 12409 df-7 12410 |
| This theorem is used by: 5p3e8 12499 17prm 17295 prmlem2 17298 37prm 17299 317prm 17304 1259lem1 17309 1259lem2 17310 1259lem4 17312 2503lem2 17316 4001lem1 17319 4001lem4 17322 log2ub 27277 bposlem8 27618 aks4d1p1p4 43121 aks4d1p1p7 43124 2p5e7 43318 2p7e9 43320 3p4e7 43321 ex-decpmul 43363 resqrtvalex 44644 imsqrtvalex 44645 fmtno5lem2 48638 257prm 48645 127prm 48683 |
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