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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 12221 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12270 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12286 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2756 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1541 (class class class)co 7355 + caddc 11020 · cmul 11022 2c2 12191 4c4 12193 8c8 12197 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1968 ax-7 2009 ax-8 2115 ax-9 2123 ax-ext 2705 ax-resscn 11074 ax-1cn 11075 ax-icn 11076 ax-addcl 11077 ax-mulcl 11079 ax-mulcom 11081 ax-addass 11082 ax-mulass 11083 ax-distr 11084 ax-1rid 11087 ax-cnre 11090 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3an 1088 df-tru 1544 df-fal 1554 df-ex 1781 df-sb 2068 df-clab 2712 df-cleq 2725 df-clel 2808 df-rex 3058 df-rab 3397 df-v 3439 df-dif 3901 df-un 3903 df-ss 3915 df-nul 4283 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4861 df-br 5096 df-iota 6445 df-fv 6497 df-ov 7358 df-2 12199 df-3 12200 df-4 12201 df-5 12202 df-6 12203 df-7 12204 df-8 12205 |
| This theorem is referenced by: 8th4div3 12352 4t3e12 12696 sq4e2t8 14113 cu2 14114 sqoddm1div8 14157 cos2bnd 16104 2exp7 17006 2exp8 17007 8nprm 17030 19prm 17036 139prm 17042 1259lem2 17050 1259lem3 17051 1259lem4 17052 1259lem5 17053 2503lem1 17055 2503lem2 17056 4001lem1 17059 4001lem2 17060 4001lem3 17061 4001lem4 17062 quart1lem 26812 quart1 26813 quartlem1 26814 log2tlbnd 26902 log2ub 26906 bpos1 27241 bposlem8 27249 lgsdir2lem2 27284 2lgslem3a 27354 2lgslem3b 27355 2lgslem3c 27356 2lgslem3d 27357 2lgsoddprmlem2 27367 2lgsoddprmlem3c 27370 2lgsoddprmlem3d 27371 chebbnd1lem2 27428 chebbnd1lem3 27429 pntlemr 27560 ex-exp 30451 420gcd8e4 42172 420lcm8e840 42177 lcmineqlem23 42217 3lexlogpow2ineq2 42225 sum9cubes 42830 fmtno4prmfac 47734 139prmALT 47758 mod42tp1mod8 47764 3exp4mod41 47778 41prothprm 47781 8even 47875 2exp340mod341 47895 8exp8mod9 47898 pgnbgreunbgrlem4 48281 |
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