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| 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 12326 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12379 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12395 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2792 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 (class class class)co 7411 + caddc 11103 · cmul 11105 2c2 12295 4c4 12297 8c8 12301 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-mulcl 11162 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-1rid 11170 ax-cnre 11173 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rex 3096 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4493 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-br 5114 df-iota 6493 df-fv 6545 df-ov 7414 df-2 12303 df-3 12304 df-4 12305 df-5 12306 df-6 12307 df-7 12308 df-8 12309 |
| This theorem is referenced by: 2t4e8 12410 8th4div3 12464 4t3e12 12814 sq4e2t8 14235 cu2 14236 sqoddm1div8 14279 cos2bnd 16244 2exp7 17147 2exp8 17148 8nprm 17171 19prm 17178 139prm 17184 1259lem2 17192 1259lem3 17193 1259lem4 17194 1259lem5 17195 2503lem1 17197 2503lem2 17198 4001lem1 17201 4001lem2 17202 4001lem3 17203 4001lem4 17204 quart1lem 26986 quart1 26987 quartlem1 26988 log2tlbnd 27076 log2ub 27080 bpos1 27413 bposlem8 27421 lgsdir2lem2 27456 2lgslem3a 27526 2lgslem3b 27527 2lgslem3c 27528 2lgslem3d 27529 2lgsoddprmlem2 27539 2lgsoddprmlem3c 27542 2lgsoddprmlem3d 27543 chebbnd1lem2 27600 chebbnd1lem3 27601 pntlemr 27732 ex-exp 30742 420gcd8e4 42697 420lcm8e840 42702 lcmineqlem23 42742 3lexlogpow2ineq2 42750 sum9cubes 43330 sin5tlem4 47536 goldratmolem2 47546 fmtno4prmfac 48247 139prmALT 48271 3exp4mod41 48291 41prothprm 48294 8even 48401 2exp340mod341 48421 8exp8mod9 48424 pgnbgreunbgrlem4 48807 |
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