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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 9384 |
. 2
| |
| 2 | 1 | mulridi 8334 |
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 8277 ax-1cn 8278 ax-1re 8279 ax-icn 8280 ax-addcl 8281 ax-addrcl 8282 ax-mulcl 8283 ax-mulcom 8286 ax-mulass 8288 ax-distr 8289 ax-1rid 8292 ax-cnre 8296 |
| 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 4132 df-iota 5340 df-fv 5388 df-ov 6091 df-2 9372 |
| This theorem is used by: decbin2 9932 qbtwnrelemcalc 10706 expubnd 11053 trirecip 12292 ege2le3 12462 cos2tsin 12542 cos2bnd 12551 odd2np1 12664 opoe 12686 flodddiv4 12727 pythagtriplem4 13075 sin0pilem2 16026 cos2pi 16048 coskpi 16092 chtublem 16312 bcp1ctr 16323 bclbnd 16324 bposlem1 16328 bposlem2 16329 bposlem5 16332 2lgslem3d1 16441 |
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