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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 12238 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7372 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12263 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11090 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11149 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2763 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12242 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7371 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2763 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12243 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2763 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7361 1c1 11033 + caddc 11035 2c2 12230 5c5 12233 6c6 12234 7c7 12235 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-1cn 11090 ax-addcl 11092 ax-addass 11097 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-iota 6449 df-fv 6501 df-ov 7364 df-2 12238 df-3 12239 df-4 12240 df-5 12241 df-6 12242 df-7 12243 |
| This theorem is referenced by: 5p3e8 12327 17prm 17081 prmlem2 17084 37prm 17085 317prm 17090 1259lem1 17095 1259lem2 17096 1259lem4 17098 2503lem2 17102 4001lem1 17105 4001lem4 17108 log2ub 26929 bposlem8 27271 aks4d1p1p4 42527 aks4d1p1p7 42530 ex-decpmul 42755 resqrtvalex 44093 imsqrtvalex 44094 fmtno5lem2 48032 257prm 48039 127prm 48077 |
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