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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 12343 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | 1 | mulridi 11240 | 1 ⊢ (2 · 1) = 2 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 (class class class)co 7414 1c1 11128 · cmul 11132 2c2 12322 |
| 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 2147 ax-9 2155 ax-ext 2732 ax-resscn 11184 ax-1cn 11185 ax-icn 11186 ax-addcl 11187 ax-mulcl 11189 ax-mulcom 11191 ax-mulass 11193 ax-distr 11194 ax-1rid 11197 ax-cnre 11200 |
| 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 2739 df-cleq 2752 df-clel 2835 df-rex 3087 df-rab 3413 df-v 3452 df-dif 3902 df-un 3904 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-iota 6489 df-fv 6541 df-ov 7417 df-2 12330 |
| This theorem is used by: decbin2 12887 expubnd 14245 01sqrexlem7 15338 trirecip 15955 bpoly3 16147 fsumcube 16149 ege2le3 16179 cos2tsin 16270 cos2bnd 16279 odd2np1 16434 opoe 16456 flodddiv4 16508 2mulprm 16786 pythagtriplem4 16914 2503lem2 17233 2503lem3 17234 4001lem4 17239 4001prm 17240 htpycc 25211 pco1 25246 pcohtpylem 25250 pcopt 25253 pcorevlem 25257 ovolunlem1a 25727 cos2pi 26717 coskpi 26763 dcubic2 27084 dcubic 27086 basellem3 27322 chtublem 27450 bcp1ctr 27518 bclbnd 27519 bposlem1 27523 bposlem2 27524 bposlem5 27527 2lgslem3d1 27642 2sqreultlem 27686 2sqreunnltlem 27689 chebbnd1lem1 27708 chebbnd1lem3 27710 chebbnd1 27711 frgrregord013 30878 ex-ind-dvds 30944 wrdt2ind 33398 knoppndvlem12 37223 heiborlem6 38569 3lexlogpow5ineq1 42923 aks4d1p1 42945 2np3bcnp1 43013 2ap1caineq 43014 flt4lem7 43508 jm2.23 43840 sumnnodd 46463 wallispilem4 46899 wallispi2lem1 46902 wallispi2lem2 46903 wallispi2 46904 stirlinglem11 46915 dirkertrigeqlem1 46929 fouriersw 47062 goldratval 47757 fmtnorec4 48455 lighneallem2 48512 lighneallem3 48513 3exp4mod41 48522 opoeALTV 48602 fppr2odd 48650 8exp8mod9 48655 ackval2 49615 ackval2012 49624 |
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