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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 12322 | . . 3 ⊢ 4 ∈ ℂ | |
| 2 | 1 | times2i 12375 | . 2 ⊢ (4 · 2) = (4 + 4) |
| 3 | 4p4e8 12391 | . 2 ⊢ (4 + 4) = 8 | |
| 4 | 2, 3 | eqtri 2792 | 1 ⊢ (4 · 2) = 8 |
| Colors of variables: wff setvar class |
| Syntax hints: = wceq 1567 (class class class)co 7408 + caddc 11099 · cmul 11101 2c2 12291 4c4 12293 8c8 12297 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-ext 2741 ax-resscn 11153 ax-1cn 11154 ax-icn 11155 ax-addcl 11156 ax-mulcl 11158 ax-mulcom 11160 ax-addass 11161 ax-mulass 11162 ax-distr 11163 ax-1rid 11166 ax-cnre 11169 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-sb 2098 df-clab 2748 df-cleq 2761 df-clel 2844 df-rex 3096 df-rab 3424 df-v 3465 df-dif 3916 df-un 3918 df-ss 3930 df-nul 4295 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4874 df-br 5111 df-iota 6490 df-fv 6542 df-ov 7411 df-2 12299 df-3 12300 df-4 12301 df-5 12302 df-6 12303 df-7 12304 df-8 12305 |
| This theorem is referenced by: 2t4e8 12406 8th4div3 12460 4t3e12 12810 sq4e2t8 14231 cu2 14232 sqoddm1div8 14275 cos2bnd 16240 2exp7 17143 2exp8 17144 8nprm 17167 19prm 17174 139prm 17180 1259lem2 17188 1259lem3 17189 1259lem4 17190 1259lem5 17191 2503lem1 17193 2503lem2 17194 4001lem1 17197 4001lem2 17198 4001lem3 17199 4001lem4 17200 quart1lem 26982 quart1 26983 quartlem1 26984 log2tlbnd 27072 log2ub 27076 bpos1 27409 bposlem8 27417 lgsdir2lem2 27452 2lgslem3a 27522 2lgslem3b 27523 2lgslem3c 27524 2lgslem3d 27525 2lgsoddprmlem2 27535 2lgsoddprmlem3c 27538 2lgsoddprmlem3d 27539 chebbnd1lem2 27596 chebbnd1lem3 27597 pntlemr 27728 ex-exp 30738 420gcd8e4 42658 420lcm8e840 42663 lcmineqlem23 42703 3lexlogpow2ineq2 42711 sum9cubes 43291 sin5tlem4 47497 goldratmolem2 47507 fmtno4prmfac 48208 139prmALT 48232 3exp4mod41 48252 41prothprm 48255 8even 48362 2exp340mod341 48382 8exp8mod9 48385 pgnbgreunbgrlem4 48768 |
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