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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 12232 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12281 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12297 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2752 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 (class class class)co 7353 + caddc 11031 · cmul 11033 2c2 12202 4c4 12204 8c8 12208 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-ext 2701 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-mulcl 11090 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-1rid 11098 ax-cnre 11101 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-sb 2066 df-clab 2708 df-cleq 2721 df-clel 2803 df-rex 3054 df-rab 3397 df-v 3440 df-dif 3908 df-un 3910 df-ss 3922 df-nul 4287 df-if 4479 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-br 5096 df-iota 6442 df-fv 6494 df-ov 7356 df-2 12210 df-3 12211 df-4 12212 df-5 12213 df-6 12214 df-7 12215 df-8 12216 |
| This theorem is referenced by: 8th4div3 12363 4t3e12 12708 sq4e2t8 14125 cu2 14126 sqoddm1div8 14169 cos2bnd 16116 2exp7 17018 2exp8 17019 8nprm 17042 19prm 17048 139prm 17054 1259lem2 17062 1259lem3 17063 1259lem4 17064 1259lem5 17065 2503lem1 17067 2503lem2 17068 4001lem1 17071 4001lem2 17072 4001lem3 17073 4001lem4 17074 quart1lem 26782 quart1 26783 quartlem1 26784 log2tlbnd 26872 log2ub 26876 bpos1 27211 bposlem8 27219 lgsdir2lem2 27254 2lgslem3a 27324 2lgslem3b 27325 2lgslem3c 27326 2lgslem3d 27327 2lgsoddprmlem2 27337 2lgsoddprmlem3c 27340 2lgsoddprmlem3d 27341 chebbnd1lem2 27398 chebbnd1lem3 27399 pntlemr 27530 ex-exp 30413 420gcd8e4 41999 420lcm8e840 42004 lcmineqlem23 42044 3lexlogpow2ineq2 42052 sum9cubes 42665 fmtno4prmfac 47576 139prmALT 47600 mod42tp1mod8 47606 3exp4mod41 47620 41prothprm 47623 8even 47717 2exp340mod341 47737 8exp8mod9 47740 pgnbgreunbgrlem4 48123 |
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