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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 12213 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12262 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12278 | . 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 7349 + caddc 11012 · cmul 11014 2c2 12183 4c4 12185 8c8 12189 |
| 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 11066 ax-1cn 11067 ax-icn 11068 ax-addcl 11069 ax-mulcl 11071 ax-mulcom 11073 ax-addass 11074 ax-mulass 11075 ax-distr 11076 ax-1rid 11079 ax-cnre 11082 |
| 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 3395 df-v 3438 df-dif 3906 df-un 3908 df-ss 3920 df-nul 4285 df-if 4477 df-sn 4578 df-pr 4580 df-op 4584 df-uni 4859 df-br 5093 df-iota 6438 df-fv 6490 df-ov 7352 df-2 12191 df-3 12192 df-4 12193 df-5 12194 df-6 12195 df-7 12196 df-8 12197 |
| This theorem is referenced by: 8th4div3 12344 4t3e12 12689 sq4e2t8 14106 cu2 14107 sqoddm1div8 14150 cos2bnd 16097 2exp7 16999 2exp8 17000 8nprm 17023 19prm 17029 139prm 17035 1259lem2 17043 1259lem3 17044 1259lem4 17045 1259lem5 17046 2503lem1 17048 2503lem2 17049 4001lem1 17052 4001lem2 17053 4001lem3 17054 4001lem4 17055 quart1lem 26763 quart1 26764 quartlem1 26765 log2tlbnd 26853 log2ub 26857 bpos1 27192 bposlem8 27200 lgsdir2lem2 27235 2lgslem3a 27305 2lgslem3b 27306 2lgslem3c 27307 2lgslem3d 27308 2lgsoddprmlem2 27318 2lgsoddprmlem3c 27321 2lgsoddprmlem3d 27322 chebbnd1lem2 27379 chebbnd1lem3 27380 pntlemr 27511 ex-exp 30398 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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