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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 12297 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12350 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12366 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2784 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1559 (class class class)co 7391 + caddc 11070 · cmul 11072 2c2 12266 4c4 12268 8c8 12272 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-ext 2733 ax-resscn 11124 ax-1cn 11125 ax-icn 11126 ax-addcl 11127 ax-mulcl 11129 ax-mulcom 11131 ax-addass 11132 ax-mulass 11133 ax-distr 11134 ax-1rid 11137 ax-cnre 11140 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-sb 2090 df-clab 2740 df-cleq 2753 df-clel 2836 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4284 df-if 4478 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-br 5098 df-iota 6472 df-fv 6524 df-ov 7394 df-2 12274 df-3 12275 df-4 12276 df-5 12277 df-6 12278 df-7 12279 df-8 12280 |
| This theorem is referenced by: 2t4e8 12381 8th4div3 12435 4t3e12 12785 sq4e2t8 14206 cu2 14207 sqoddm1div8 14250 cos2bnd 16211 2exp7 17114 2exp8 17115 8nprm 17138 19prm 17145 139prm 17151 1259lem2 17159 1259lem3 17160 1259lem4 17161 1259lem5 17162 2503lem1 17164 2503lem2 17165 4001lem1 17168 4001lem2 17169 4001lem3 17170 4001lem4 17171 quart1lem 26908 quart1 26909 quartlem1 26910 log2tlbnd 26998 log2ub 27002 bpos1 27335 bposlem8 27343 lgsdir2lem2 27378 2lgslem3a 27448 2lgslem3b 27449 2lgslem3c 27450 2lgslem3d 27451 2lgsoddprmlem2 27461 2lgsoddprmlem3c 27464 2lgsoddprmlem3d 27465 chebbnd1lem2 27522 chebbnd1lem3 27523 pntlemr 27654 ex-exp 30609 420gcd8e4 42584 420lcm8e840 42589 lcmineqlem23 42629 3lexlogpow2ineq2 42637 sum9cubes 43215 sin5tlem4 47431 goldratmolem2 47441 fmtno4prmfac 48142 139prmALT 48166 3exp4mod41 48186 41prothprm 48189 8even 48296 2exp340mod341 48316 8exp8mod9 48319 pgnbgreunbgrlem4 48702 |
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