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Mirrors > Home > ILE Home > Th. List > 2times | Unicode version |
Description: Two times a number. (Contributed by NM, 10-Oct-2004.) (Revised by Mario Carneiro, 27-May-2016.) (Proof shortened by AV, 26-Feb-2020.) |
Ref | Expression |
---|---|
2times |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-2 8916 | . . 3 | |
2 | 1 | oveq1i 5852 | . 2 |
3 | 1p1times 8032 | . 2 | |
4 | 2, 3 | syl5eq 2211 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1343 wcel 2136 (class class class)co 5842 cc 7751 c1 7754 caddc 7756 cmul 7758 c2 8908 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 699 ax-5 1435 ax-7 1436 ax-gen 1437 ax-ie1 1481 ax-ie2 1482 ax-8 1492 ax-10 1493 ax-11 1494 ax-i12 1495 ax-bndl 1497 ax-4 1498 ax-17 1514 ax-i9 1518 ax-ial 1522 ax-i5r 1523 ax-ext 2147 ax-resscn 7845 ax-1cn 7846 ax-icn 7848 ax-addcl 7849 ax-mulcl 7851 ax-mulcom 7854 ax-mulass 7856 ax-distr 7857 ax-1rid 7860 ax-cnre 7864 |
This theorem depends on definitions: df-bi 116 df-3an 970 df-tru 1346 df-nf 1449 df-sb 1751 df-clab 2152 df-cleq 2158 df-clel 2161 df-nfc 2297 df-ral 2449 df-rex 2450 df-v 2728 df-un 3120 df-in 3122 df-ss 3129 df-sn 3582 df-pr 3583 df-op 3585 df-uni 3790 df-br 3983 df-iota 5153 df-fv 5196 df-ov 5845 df-2 8916 |
This theorem is referenced by: times2 8986 2timesi 8987 2halves 9086 halfaddsub 9091 avglt2 9096 2timesd 9099 expubnd 10512 subsq2 10562 sinmul 11685 sin2t 11690 cos2t 11691 pythagtriplem4 12200 pythagtriplem14 12209 pythagtriplem16 12211 |
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