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| Mirrors > Home > ILE Home > Th. List > 2t1e2 | Unicode version | ||
| Description: 2 times 1 equals 2. (Contributed by David A. Wheeler, 6-Dec-2018.) |
| Ref | Expression |
|---|---|
| 2t1e2 |
|
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | 2cn 9378 |
. 2
| |
| 2 | 1 | mulridi 8329 |
1
|
| Colors of variables: wff set class |
| This proof depends on syntax axioms:
|
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-ext 2220 ax-resscn 8272 ax-1cn 8273 ax-1re 8274 ax-icn 8275 ax-addcl 8276 ax-addrcl 8277 ax-mulcl 8278 ax-mulcom 8281 ax-mulass 8283 ax-distr 8284 ax-1rid 8287 ax-cnre 8291 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-un 3224 df-in 3226 df-ss 3233 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4131 df-iota 5337 df-fv 5385 df-ov 6088 df-2 9366 |
| This theorem is used by: decbin2 9927 qbtwnrelemcalc 10701 expubnd 11048 trirecip 12287 ege2le3 12457 cos2tsin 12537 cos2bnd 12546 odd2np1 12659 opoe 12681 flodddiv4 12722 pythagtriplem4 13070 sin0pilem2 15975 cos2pi 15997 coskpi 16041 chtublem 16256 bcp1ctr 16267 bclbnd 16268 bposlem1 16272 bposlem2 16273 bposlem5 16276 2lgslem3d1 16385 |
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