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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 12247 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12296 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12312 | . 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 7369 + caddc 11047 · cmul 11049 2c2 12217 4c4 12219 8c8 12223 |
| 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 11101 ax-1cn 11102 ax-icn 11103 ax-addcl 11104 ax-mulcl 11106 ax-mulcom 11108 ax-addass 11109 ax-mulass 11110 ax-distr 11111 ax-1rid 11114 ax-cnre 11117 |
| 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 3403 df-v 3446 df-dif 3914 df-un 3916 df-ss 3928 df-nul 4293 df-if 4485 df-sn 4586 df-pr 4588 df-op 4592 df-uni 4868 df-br 5103 df-iota 6452 df-fv 6507 df-ov 7372 df-2 12225 df-3 12226 df-4 12227 df-5 12228 df-6 12229 df-7 12230 df-8 12231 |
| This theorem is referenced by: 8th4div3 12378 4t3e12 12723 sq4e2t8 14140 cu2 14141 sqoddm1div8 14184 cos2bnd 16132 2exp7 17034 2exp8 17035 8nprm 17058 19prm 17064 139prm 17070 1259lem2 17078 1259lem3 17079 1259lem4 17080 1259lem5 17081 2503lem1 17083 2503lem2 17084 4001lem1 17087 4001lem2 17088 4001lem3 17089 4001lem4 17090 quart1lem 26741 quart1 26742 quartlem1 26743 log2tlbnd 26831 log2ub 26835 bpos1 27170 bposlem8 27178 lgsdir2lem2 27213 2lgslem3a 27283 2lgslem3b 27284 2lgslem3c 27285 2lgslem3d 27286 2lgsoddprmlem2 27296 2lgsoddprmlem3c 27299 2lgsoddprmlem3d 27300 chebbnd1lem2 27357 chebbnd1lem3 27358 pntlemr 27489 ex-exp 30352 420gcd8e4 41967 420lcm8e840 41972 lcmineqlem23 42012 3lexlogpow2ineq2 42020 sum9cubes 42633 fmtno4prmfac 47546 139prmALT 47570 mod42tp1mod8 47576 3exp4mod41 47590 41prothprm 47593 8even 47687 2exp340mod341 47707 8exp8mod9 47710 pgnbgreunbgrlem4 48082 |
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