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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 8907 | . . 3 | |
2 | 1 | oveq1i 5846 | . 2 |
3 | 1p1times 8023 | . 2 | |
4 | 2, 3 | syl5eq 2209 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1342 wcel 2135 (class class class)co 5836 cc 7742 c1 7745 caddc 7747 cmul 7749 c2 8899 |
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 1434 ax-7 1435 ax-gen 1436 ax-ie1 1480 ax-ie2 1481 ax-8 1491 ax-10 1492 ax-11 1493 ax-i12 1494 ax-bndl 1496 ax-4 1497 ax-17 1513 ax-i9 1517 ax-ial 1521 ax-i5r 1522 ax-ext 2146 ax-resscn 7836 ax-1cn 7837 ax-icn 7839 ax-addcl 7840 ax-mulcl 7842 ax-mulcom 7845 ax-mulass 7847 ax-distr 7848 ax-1rid 7851 ax-cnre 7855 |
This theorem depends on definitions: df-bi 116 df-3an 969 df-tru 1345 df-nf 1448 df-sb 1750 df-clab 2151 df-cleq 2157 df-clel 2160 df-nfc 2295 df-ral 2447 df-rex 2448 df-v 2723 df-un 3115 df-in 3117 df-ss 3124 df-sn 3576 df-pr 3577 df-op 3579 df-uni 3784 df-br 3977 df-iota 5147 df-fv 5190 df-ov 5839 df-2 8907 |
This theorem is referenced by: times2 8977 2timesi 8978 2halves 9077 halfaddsub 9082 avglt2 9087 2timesd 9090 expubnd 10502 subsq2 10552 sinmul 11671 sin2t 11676 cos2t 11677 pythagtriplem4 12177 pythagtriplem14 12186 pythagtriplem16 12188 |
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