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| Mirrors > Home > ILE Home > Th. List > 2t1e2 | 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 9213 | . 2 ⊢ 2 ∈ ℂ | |
| 2 | 1 | mulridi 8180 | 1 ⊢ (2 · 1) = 2 |
| Colors of variables: wff set class |
| Syntax hints: = wceq 1397 (class class class)co 6017 1c1 8032 · cmul 8036 2c2 9193 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-ext 2213 ax-resscn 8123 ax-1cn 8124 ax-1re 8125 ax-icn 8126 ax-addcl 8127 ax-addrcl 8128 ax-mulcl 8129 ax-mulcom 8132 ax-mulass 8134 ax-distr 8135 ax-1rid 8138 ax-cnre 8142 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-un 3204 df-in 3206 df-ss 3213 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-iota 5286 df-fv 5334 df-ov 6020 df-2 9201 |
| This theorem is referenced by: decbin2 9750 qbtwnrelemcalc 10514 expubnd 10857 trirecip 12061 ege2le3 12231 cos2tsin 12311 cos2bnd 12320 odd2np1 12433 opoe 12455 flodddiv4 12496 pythagtriplem4 12840 sin0pilem2 15505 cos2pi 15527 coskpi 15571 2lgslem3d1 15828 |
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