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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 12333 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | 1 | mulridi 11230 | 1 ⊢ (2 · 1) = 2 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7419 1c1 11118 · cmul 11122 2c2 12312 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2148 ax-9 2156 ax-ext 2737 ax-resscn 11174 ax-1cn 11175 ax-icn 11176 ax-addcl 11177 ax-mulcl 11179 ax-mulcom 11181 ax-mulass 11183 ax-distr 11184 ax-1rid 11187 ax-cnre 11190 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2744 df-cleq 2757 df-clel 2840 df-rex 3092 df-rab 3419 df-v 3459 df-dif 3909 df-un 3911 df-ss 3923 df-nul 4287 df-if 4490 df-sn 4592 df-pr 4594 df-op 4598 df-uni 4875 df-br 5112 df-iota 6496 df-fv 6548 df-ov 7422 df-2 12320 |
| This theorem is used by: decbin2 12877 expubnd 14234 01sqrexlem7 15325 trirecip 15942 bpoly3 16136 fsumcube 16138 ege2le3 16168 cos2tsin 16259 cos2bnd 16268 odd2np1 16423 opoe 16445 flodddiv4 16497 2mulprm 16775 pythagtriplem4 16903 2503lem2 17222 2503lem3 17223 4001lem4 17228 4001prm 17229 htpycc 25192 pco1 25227 pcohtpylem 25231 pcopt 25234 pcorevlem 25238 ovolunlem1a 25708 cos2pi 26694 coskpi 26741 dcubic2 27062 dcubic 27064 basellem3 27300 chtublem 27428 bcp1ctr 27496 bclbnd 27497 bposlem1 27501 bposlem2 27502 bposlem5 27505 2lgslem3d1 27620 2sqreultlem 27664 2sqreunnltlem 27667 chebbnd1lem1 27686 chebbnd1lem3 27688 chebbnd1 27689 frgrregord013 30819 ex-ind-dvds 30885 wrdt2ind 33341 knoppndvlem12 37171 heiborlem6 38527 3lexlogpow5ineq1 42881 aks4d1p1 42903 2np3bcnp1 42971 2ap1caineq 42972 flt4lem7 43451 jm2.23 43783 sumnnodd 46406 wallispilem4 46842 wallispi2lem1 46845 wallispi2lem2 46846 wallispi2 46847 stirlinglem11 46858 dirkertrigeqlem1 46872 fouriersw 47005 fmtnorec4 48361 lighneallem2 48418 lighneallem3 48419 3exp4mod41 48428 opoeALTV 48508 fppr2odd 48556 8exp8mod9 48561 ackval2 49521 ackval2012 49530 |
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