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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 12330 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7425 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12356 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11185 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11246 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2786 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12334 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7424 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2786 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12335 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2786 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7414 1c1 11128 + caddc 11130 2c2 12322 5c5 12325 6c6 12326 7c7 12327 |
| 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 2732 ax-1cn 11185 ax-addcl 11187 ax-addass 11192 |
| 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 2739 df-cleq 2752 df-clel 2835 df-rab 3413 df-v 3452 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 6489 df-fv 6541 df-ov 7417 df-2 12330 df-3 12331 df-4 12332 df-5 12333 df-6 12334 df-7 12335 |
| This theorem is used by: 5p3e8 12424 17prm 17212 prmlem2 17215 37prm 17216 317prm 17221 1259lem1 17226 1259lem2 17227 1259lem4 17229 2503lem2 17233 4001lem1 17236 4001lem4 17239 log2ub 27189 bposlem8 27530 aks4d1p1p4 42940 aks4d1p1p7 42943 2p5e7 43137 2p7e9 43139 3p4e7 43140 ex-decpmul 43184 resqrtvalex 44488 imsqrtvalex 44489 fmtno5lem2 48460 257prm 48467 127prm 48505 |
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