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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 12278 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12327 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12343 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2753 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 (class class class)co 7390 + caddc 11078 · cmul 11080 2c2 12248 4c4 12250 8c8 12254 |
| 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 2702 ax-resscn 11132 ax-1cn 11133 ax-icn 11134 ax-addcl 11135 ax-mulcl 11137 ax-mulcom 11139 ax-addass 11140 ax-mulass 11141 ax-distr 11142 ax-1rid 11145 ax-cnre 11148 |
| 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 2709 df-cleq 2722 df-clel 2804 df-rex 3055 df-rab 3409 df-v 3452 df-dif 3920 df-un 3922 df-ss 3934 df-nul 4300 df-if 4492 df-sn 4593 df-pr 4595 df-op 4599 df-uni 4875 df-br 5111 df-iota 6467 df-fv 6522 df-ov 7393 df-2 12256 df-3 12257 df-4 12258 df-5 12259 df-6 12260 df-7 12261 df-8 12262 |
| This theorem is referenced by: 8th4div3 12409 4t3e12 12754 sq4e2t8 14171 cu2 14172 sqoddm1div8 14215 cos2bnd 16163 2exp7 17065 2exp8 17066 8nprm 17089 19prm 17095 139prm 17101 1259lem2 17109 1259lem3 17110 1259lem4 17111 1259lem5 17112 2503lem1 17114 2503lem2 17115 4001lem1 17118 4001lem2 17119 4001lem3 17120 4001lem4 17121 quart1lem 26772 quart1 26773 quartlem1 26774 log2tlbnd 26862 log2ub 26866 bpos1 27201 bposlem8 27209 lgsdir2lem2 27244 2lgslem3a 27314 2lgslem3b 27315 2lgslem3c 27316 2lgslem3d 27317 2lgsoddprmlem2 27327 2lgsoddprmlem3c 27330 2lgsoddprmlem3d 27331 chebbnd1lem2 27388 chebbnd1lem3 27389 pntlemr 27520 ex-exp 30386 420gcd8e4 42001 420lcm8e840 42006 lcmineqlem23 42046 3lexlogpow2ineq2 42054 sum9cubes 42667 fmtno4prmfac 47577 139prmALT 47601 mod42tp1mod8 47607 3exp4mod41 47621 41prothprm 47624 8even 47718 2exp340mod341 47738 8exp8mod9 47741 pgnbgreunbgrlem4 48113 |
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