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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 12271 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12320 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12336 | . 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 7387 + caddc 11071 · cmul 11073 2c2 12241 4c4 12243 8c8 12247 |
| 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 11125 ax-1cn 11126 ax-icn 11127 ax-addcl 11128 ax-mulcl 11130 ax-mulcom 11132 ax-addass 11133 ax-mulass 11134 ax-distr 11135 ax-1rid 11138 ax-cnre 11141 |
| 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 3406 df-v 3449 df-dif 3917 df-un 3919 df-ss 3931 df-nul 4297 df-if 4489 df-sn 4590 df-pr 4592 df-op 4596 df-uni 4872 df-br 5108 df-iota 6464 df-fv 6519 df-ov 7390 df-2 12249 df-3 12250 df-4 12251 df-5 12252 df-6 12253 df-7 12254 df-8 12255 |
| This theorem is referenced by: 8th4div3 12402 4t3e12 12747 sq4e2t8 14164 cu2 14165 sqoddm1div8 14208 cos2bnd 16156 2exp7 17058 2exp8 17059 8nprm 17082 19prm 17088 139prm 17094 1259lem2 17102 1259lem3 17103 1259lem4 17104 1259lem5 17105 2503lem1 17107 2503lem2 17108 4001lem1 17111 4001lem2 17112 4001lem3 17113 4001lem4 17114 quart1lem 26765 quart1 26766 quartlem1 26767 log2tlbnd 26855 log2ub 26859 bpos1 27194 bposlem8 27202 lgsdir2lem2 27237 2lgslem3a 27307 2lgslem3b 27308 2lgslem3c 27309 2lgslem3d 27310 2lgsoddprmlem2 27320 2lgsoddprmlem3c 27323 2lgsoddprmlem3d 27324 chebbnd1lem2 27381 chebbnd1lem3 27382 pntlemr 27513 ex-exp 30379 420gcd8e4 41994 420lcm8e840 41999 lcmineqlem23 42039 3lexlogpow2ineq2 42047 sum9cubes 42660 fmtno4prmfac 47573 139prmALT 47597 mod42tp1mod8 47603 3exp4mod41 47617 41prothprm 47620 8even 47714 2exp340mod341 47734 8exp8mod9 47737 pgnbgreunbgrlem4 48109 |
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