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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 12266 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12315 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12331 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2759 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1542 (class class class)co 7367 + caddc 11041 · cmul 11043 2c2 12236 4c4 12238 8c8 12242 |
| 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 2708 ax-resscn 11095 ax-1cn 11096 ax-icn 11097 ax-addcl 11098 ax-mulcl 11100 ax-mulcom 11102 ax-addass 11103 ax-mulass 11104 ax-distr 11105 ax-1rid 11108 ax-cnre 11111 |
| 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 2715 df-cleq 2728 df-clel 2811 df-rex 3062 df-rab 3390 df-v 3431 df-dif 3892 df-un 3894 df-ss 3906 df-nul 4274 df-if 4467 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4851 df-br 5086 df-iota 6454 df-fv 6506 df-ov 7370 df-2 12244 df-3 12245 df-4 12246 df-5 12247 df-6 12248 df-7 12249 df-8 12250 |
| This theorem is referenced by: 8th4div3 12397 4t3e12 12742 sq4e2t8 14161 cu2 14162 sqoddm1div8 14205 cos2bnd 16155 2exp7 17058 2exp8 17059 8nprm 17082 19prm 17088 139prm 17094 1259lem2 17102 1259lem3 17103 1259lem4 17104 1259lem5 17105 2503lem1 17107 2503lem2 17108 4001lem1 17111 4001lem2 17112 4001lem3 17113 4001lem4 17114 quart1lem 26819 quart1 26820 quartlem1 26821 log2tlbnd 26909 log2ub 26913 bpos1 27246 bposlem8 27254 lgsdir2lem2 27289 2lgslem3a 27359 2lgslem3b 27360 2lgslem3c 27361 2lgslem3d 27362 2lgsoddprmlem2 27372 2lgsoddprmlem3c 27375 2lgsoddprmlem3d 27376 chebbnd1lem2 27433 chebbnd1lem3 27434 pntlemr 27565 ex-exp 30520 420gcd8e4 42445 420lcm8e840 42450 lcmineqlem23 42490 3lexlogpow2ineq2 42498 sum9cubes 43105 sin5tlem4 47324 goldratmolem2 47334 fmtno4prmfac 48035 139prmALT 48059 mod42tp1mod8 48065 3exp4mod41 48079 41prothprm 48082 8even 48189 2exp340mod341 48209 8exp8mod9 48212 pgnbgreunbgrlem4 48595 |
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