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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 12325 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12379 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12395 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2758 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1540 (class class class)co 7405 + caddc 11132 · cmul 11134 2c2 12295 4c4 12297 8c8 12301 |
| 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 2007 ax-8 2110 ax-9 2118 ax-ext 2707 ax-resscn 11186 ax-1cn 11187 ax-icn 11188 ax-addcl 11189 ax-mulcl 11191 ax-mulcom 11193 ax-addass 11194 ax-mulass 11195 ax-distr 11196 ax-1rid 11199 ax-cnre 11202 |
| 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 2065 df-clab 2714 df-cleq 2727 df-clel 2809 df-rex 3061 df-rab 3416 df-v 3461 df-dif 3929 df-un 3931 df-ss 3943 df-nul 4309 df-if 4501 df-sn 4602 df-pr 4604 df-op 4608 df-uni 4884 df-br 5120 df-iota 6484 df-fv 6539 df-ov 7408 df-2 12303 df-3 12304 df-4 12305 df-5 12306 df-6 12307 df-7 12308 df-8 12309 |
| This theorem is referenced by: 8th4div3 12461 4t3e12 12806 sq4e2t8 14217 cu2 14218 sqoddm1div8 14261 cos2bnd 16206 2exp7 17107 2exp8 17108 8nprm 17131 19prm 17137 139prm 17143 1259lem2 17151 1259lem3 17152 1259lem4 17153 1259lem5 17154 2503lem1 17156 2503lem2 17157 4001lem1 17160 4001lem2 17161 4001lem3 17162 4001lem4 17163 quart1lem 26817 quart1 26818 quartlem1 26819 log2tlbnd 26907 log2ub 26911 bpos1 27246 bposlem8 27254 lgsdir2lem2 27289 2lgslem3a 27359 2lgslem3b 27360 2lgslem3c 27361 2lgslem3d 27362 2lgsoddprmlem2 27372 2lgsoddprmlem3c 27375 2lgsoddprmlem3d 27376 chebbnd1lem2 27433 chebbnd1lem3 27434 pntlemr 27565 ex-exp 30431 420gcd8e4 42019 420lcm8e840 42024 lcmineqlem23 42064 3lexlogpow2ineq2 42072 sum9cubes 42695 fmtno4prmfac 47586 139prmALT 47610 mod42tp1mod8 47616 3exp4mod41 47630 41prothprm 47633 8even 47727 2exp340mod341 47747 8exp8mod9 47750 |
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