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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 12257 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12306 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12322 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2762 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1547 (class class class)co 7356 + caddc 11032 · cmul 11034 2c2 12227 4c4 12229 8c8 12233 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1802 ax-4 1816 ax-5 1917 ax-6 1974 ax-7 2015 ax-8 2121 ax-9 2129 ax-ext 2711 ax-resscn 11086 ax-1cn 11087 ax-icn 11088 ax-addcl 11089 ax-mulcl 11091 ax-mulcom 11093 ax-addass 11094 ax-mulass 11095 ax-distr 11096 ax-1rid 11099 ax-cnre 11102 |
| This theorem depends on definitions: df-bi 208 df-an 397 df-or 854 df-3an 1094 df-tru 1550 df-fal 1560 df-ex 1787 df-sb 2074 df-clab 2718 df-cleq 2731 df-clel 2814 df-rex 3064 df-rab 3392 df-v 3433 df-dif 3886 df-un 3888 df-ss 3900 df-nul 4262 df-if 4455 df-sn 4556 df-pr 4558 df-op 4562 df-uni 4839 df-br 5073 df-iota 6441 df-fv 6493 df-ov 7359 df-2 12235 df-3 12236 df-4 12237 df-5 12238 df-6 12239 df-7 12240 df-8 12241 |
| This theorem is referenced by: 8th4div3 12388 4t3e12 12733 sq4e2t8 14152 cu2 14153 sqoddm1div8 14196 cos2bnd 16146 2exp7 17049 2exp8 17050 8nprm 17073 19prm 17079 139prm 17085 1259lem2 17093 1259lem3 17094 1259lem4 17095 1259lem5 17096 2503lem1 17098 2503lem2 17099 4001lem1 17102 4001lem2 17103 4001lem3 17104 4001lem4 17105 quart1lem 26837 quart1 26838 quartlem1 26839 log2tlbnd 26927 log2ub 26931 bpos1 27264 bposlem8 27272 lgsdir2lem2 27307 2lgslem3a 27377 2lgslem3b 27378 2lgslem3c 27379 2lgslem3d 27380 2lgsoddprmlem2 27390 2lgsoddprmlem3c 27393 2lgsoddprmlem3d 27394 chebbnd1lem2 27451 chebbnd1lem3 27452 pntlemr 27583 ex-exp 30538 420gcd8e4 42491 420lcm8e840 42496 lcmineqlem23 42536 3lexlogpow2ineq2 42544 sum9cubes 43122 sin5tlem4 47339 goldratmolem2 47349 fmtno4prmfac 48050 139prmALT 48074 mod42tp1mod8 48080 3exp4mod41 48094 41prothprm 48097 8even 48204 2exp340mod341 48224 8exp8mod9 48227 pgnbgreunbgrlem4 48610 |
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