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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 12208 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7369 | . . . 4 ⊢ (5 + 2) = (5 + (1 + 1)) |
| 3 | 5cn 12233 | . . . . 5 ⊢ 5 ∈ ℂ | |
| 4 | ax-1cn 11084 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11142 | . . . 4 ⊢ ((5 + 1) + 1) = (5 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2762 | . . 3 ⊢ (5 + 2) = ((5 + 1) + 1) |
| 7 | df-6 12212 | . . . 4 ⊢ 6 = (5 + 1) | |
| 8 | 7 | oveq1i 7368 | . . 3 ⊢ (6 + 1) = ((5 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2762 | . 2 ⊢ (5 + 2) = (6 + 1) |
| 10 | df-7 12213 | . 2 ⊢ 7 = (6 + 1) | |
| 11 | 9, 10 | eqtr4i 2762 | 1 ⊢ (5 + 2) = 7 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 (class class class)co 7358 1c1 11027 + caddc 11029 2c2 12200 5c5 12203 6c6 12204 7c7 12205 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2708 ax-1cn 11084 ax-addcl 11086 ax-addass 11091 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2715 df-cleq 2728 df-clel 2811 df-rab 3400 df-v 3442 df-dif 3904 df-un 3906 df-ss 3918 df-nul 4286 df-if 4480 df-sn 4581 df-pr 4583 df-op 4587 df-uni 4864 df-br 5099 df-iota 6448 df-fv 6500 df-ov 7361 df-2 12208 df-3 12209 df-4 12210 df-5 12211 df-6 12212 df-7 12213 |
| This theorem is referenced by: 5p3e8 12297 17prm 17044 prmlem2 17047 37prm 17048 317prm 17053 1259lem1 17058 1259lem2 17059 1259lem4 17061 2503lem2 17065 4001lem1 17068 4001lem4 17071 log2ub 26915 bposlem8 27258 aks4d1p1p4 42335 aks4d1p1p7 42338 ex-decpmul 42571 resqrtvalex 43896 imsqrtvalex 43897 fmtno5lem2 47810 257prm 47817 127prm 47855 |
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