| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 4p2e6 | Structured version Visualization version GIF version | ||
| Description: 4 + 2 = 6. (Contributed by NM, 11-May-2004.) |
| Ref | Expression |
|---|---|
| 4p2e6 | ⊢ (4 + 2) = 6 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | df-2 12445 | . . . . 5 ⊢ 2 = (1 + 1) | |
| 2 | 1 | oveq2i 7462 | . . . 4 ⊢ (4 + 2) = (4 + (1 + 1)) |
| 3 | 4cn 12468 | . . . . 5 ⊢ 4 ∈ ℂ | |
| 4 | ax-1cn 11297 | . . . . 5 ⊢ 1 ∈ ℂ | |
| 5 | 3, 4, 4 | addassi 11358 | . . . 4 ⊢ ((4 + 1) + 1) = (4 + (1 + 1)) |
| 6 | 2, 5 | eqtr4i 2789 | . . 3 ⊢ (4 + 2) = ((4 + 1) + 1) |
| 7 | df-5 12448 | . . . 4 ⊢ 5 = (4 + 1) | |
| 8 | 7 | oveq1i 7461 | . . 3 ⊢ (5 + 1) = ((4 + 1) + 1) |
| 9 | 6, 8 | eqtr4i 2789 | . 2 ⊢ (4 + 2) = (5 + 1) |
| 10 | df-6 12449 | . 2 ⊢ 6 = (5 + 1) | |
| 11 | 9, 10 | eqtr4i 2789 | 1 ⊢ (4 + 2) = 6 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7451 1c1 11240 + caddc 11242 2c2 12437 4c4 12439 5c5 12440 6c6 12441 |
| 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 1945 ax-6 2002 ax-7 2043 ax-8 2149 ax-9 2157 ax-ext 2735 ax-1cn 11297 ax-addcl 11299 ax-addass 11304 |
| 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 2102 df-clab 2742 df-cleq 2755 df-clel 2839 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4841 df-uni 4873 df-br 5109 df-iota 6520 df-fv 6574 df-ov 7454 df-2 12445 df-3 12446 df-4 12447 df-5 12448 df-6 12449 |
| This theorem is used by: 4p3e7 12536 div4p1lem1div2 12641 4t4e16 12958 6gcd4e2 16755 2exp16 17312 163prm 17347 631prm 17349 1259lem4 17356 2503lem2 17360 2503lem3 17361 4001lem1 17363 4001lem2 17364 4001lem4 17366 bposlem9 27676 hgt750lem2 35392 3exp7 43369 3lexlogpow5ineq1 43370 aks4d1p1p5 43391 4p4e8ALT 43575 2p4e6 43583 235t711 43628 ex-decpmul 43629 3cubeslem3r 43963 lhe4.4ex1a 45574 ceil5half3 48689 fmtno4prmfac 48930 fmtno5faclem1 48937 gbowgt5 49133 mogoldbb 49156 |
| Copyright terms: Public domain | W3C validator |