| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > 4t2e8 | Structured version Visualization version GIF version | ||
| Description: 4 times 2 equals 8. (Contributed by NM, 2-Aug-2004.) |
| Ref | Expression |
|---|---|
| 4t2e8 | ⊢ (4 · 2) = 8 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 4cn 12350 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12403 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12419 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2783 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7413 + caddc 11127 · cmul 11129 2c2 12319 4c4 12321 8c8 12325 |
| 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-resscn 11181 ax-1cn 11182 ax-icn 11183 ax-addcl 11184 ax-mulcl 11186 ax-mulcom 11188 ax-addass 11189 ax-mulass 11190 ax-distr 11191 ax-1rid 11194 ax-cnre 11197 |
| 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-rex 3087 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 7416 df-2 12327 df-3 12328 df-4 12329 df-5 12330 df-6 12331 df-7 12332 df-8 12333 |
| This theorem is used by: 2t4e8 12434 8th4div3 12488 4t3e12 12839 cu2 14264 sqoddm1div8 14307 2exp7 17179 8nprm 17203 19prm 17210 139prm 17216 1259lem2 17224 1259lem3 17225 1259lem4 17226 2503lem1 17229 2503lem2 17230 4001lem1 17233 4001lem2 17234 log2tlbnd 27182 log2ub 27186 bpos1 27519 bposlem8 27527 lgsdir2lem2 27562 2lgslem3a 27632 2lgslem3b 27633 2lgslem3c 27634 2lgslem3d 27635 2lgsoddprmlem2 27645 2lgsoddprmlem3c 27648 chebbnd1lem2 27706 chebbnd1lem3 27707 pntlemr 27838 420gcd8e4 42872 420lcm8e840 42877 sum9cubes 43518 sin5tlem4 47740 goldratmolem2 47751 139prmALT 48499 41prothprm 48522 8even 48629 pgnbgreunbgrlem4 49035 |
| Copyright terms: Public domain | W3C validator |