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| Mirrors > Home > MPE Home > Th. List > 2t1e2 | Structured version Visualization version GIF version | ||
| Description: 2 times 1 equals 2. (Contributed by David A. Wheeler, 6-Dec-2018.) |
| Ref | Expression |
|---|---|
| 2t1e2 | ⊢ (2 · 1) = 2 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 12431 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | 1 | mulridi 11326 | 1 ⊢ (2 · 1) = 2 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1569 (class class class)co 7430 1c1 11214 · cmul 11218 2c2 12410 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 ax-resscn 11270 ax-1cn 11271 ax-icn 11272 ax-addcl 11273 ax-mulcl 11275 ax-mulcom 11277 ax-mulass 11279 ax-distr 11280 ax-1rid 11283 ax-cnre 11286 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-uni 4871 df-br 5107 df-iota 6501 df-fv 6555 df-ov 7433 df-2 12418 |
| This theorem is used by: decbin2 12975 expubnd 14334 01sqrexlem7 15430 trirecip 16047 bpoly3 16239 fsumcube 16241 ege2le3 16271 cos2tsin 16362 cos2bnd 16371 odd2np1 16526 opoe 16548 flodddiv4 16600 2mulprm 16883 pythagtriplem4 17012 2503lem2 17331 2503lem3 17332 4001lem4 17337 4001prm 17338 htpycc 25316 pco1 25351 pcohtpylem 25355 pcopt 25358 pcorevlem 25362 ovolunlem1a 25832 cos2pi 26820 coskpi 26866 dcubic2 27187 dcubic 27189 basellem3 27425 chtublem 27553 bcp1ctr 27621 bclbnd 27622 bposlem1 27626 bposlem2 27627 bposlem5 27630 2lgslem3d1 27745 2sqreultlem 27789 2sqreunnltlem 27792 chebbnd1lem1 27811 chebbnd1lem3 27813 chebbnd1 27814 frgrregord013 31011 ex-ind-dvds 31077 wrdt2ind 33572 knoppndvlem12 37519 heiborlem6 38893 3lexlogpow5ineq1 43247 aks4d1p1 43269 2np3bcnp1 43337 2ap1caineq 43338 jm2.23 44146 sumnnodd 46784 wallispilem4 47220 wallispi2lem1 47223 wallispi2lem2 47224 wallispi2 47225 stirlinglem11 47236 dirkertrigeqlem1 47250 fouriersw 47383 goldratval 48078 fmtnorec4 48776 lighneallem2 48833 lighneallem3 48834 3exp4mod41 48843 opoeALTV 48923 fppr2odd 48971 8exp8mod9 48976 ackval2 49936 ackval2012 49945 |
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