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Mirrors > Home > ILE Home > Th. List > times2 | Unicode version |
Description: A number times 2. (Contributed by NM, 16-Oct-2007.) |
Ref | Expression |
---|---|
times2 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 2cn 8920 | . . 3 | |
2 | mulcom 7874 | . . 3 | |
3 | 1, 2 | mpan2 422 | . 2 |
4 | 2times 8977 | . 2 | |
5 | 3, 4 | eqtrd 2197 | 1 |
Colors of variables: wff set class |
Syntax hints: wi 4 wceq 1342 wcel 2135 (class class class)co 5837 cc 7743 caddc 7748 cmul 7750 c2 8900 |
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 7837 ax-1cn 7838 ax-1re 7839 ax-icn 7840 ax-addcl 7841 ax-addrcl 7842 ax-mulcl 7843 ax-mulcom 7846 ax-mulass 7848 ax-distr 7849 ax-1rid 7852 ax-cnre 7856 |
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 2724 df-un 3116 df-in 3118 df-ss 3125 df-sn 3577 df-pr 3578 df-op 3580 df-uni 3785 df-br 3978 df-iota 5148 df-fv 5191 df-ov 5840 df-2 8908 |
This theorem is referenced by: times2i 8980 avglt1 9087 times2d 9092 |
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