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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 2760 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7360 + 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 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 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 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-iota 6448 df-fv 6500 df-ov 7363 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 26832 quart1 26833 quartlem1 26834 log2tlbnd 26922 log2ub 26926 bpos1 27260 bposlem8 27268 lgsdir2lem2 27303 2lgslem3a 27373 2lgslem3b 27374 2lgslem3c 27375 2lgslem3d 27376 2lgsoddprmlem2 27386 2lgsoddprmlem3c 27389 2lgsoddprmlem3d 27390 chebbnd1lem2 27447 chebbnd1lem3 27448 pntlemr 27579 ex-exp 30535 420gcd8e4 42459 420lcm8e840 42464 lcmineqlem23 42504 3lexlogpow2ineq2 42512 sum9cubes 43119 sin5tlem4 47340 fmtno4prmfac 48047 139prmALT 48071 mod42tp1mod8 48077 3exp4mod41 48091 41prothprm 48094 8even 48201 2exp340mod341 48221 8exp8mod9 48224 pgnbgreunbgrlem4 48607 |
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