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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 8949 | . 2 | |
2 | 1 | mulid1i 7922 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1348 (class class class)co 5853 c1 7775 cmul 7779 c2 8929 |
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 704 ax-5 1440 ax-7 1441 ax-gen 1442 ax-ie1 1486 ax-ie2 1487 ax-8 1497 ax-10 1498 ax-11 1499 ax-i12 1500 ax-bndl 1502 ax-4 1503 ax-17 1519 ax-i9 1523 ax-ial 1527 ax-i5r 1528 ax-ext 2152 ax-resscn 7866 ax-1cn 7867 ax-1re 7868 ax-icn 7869 ax-addcl 7870 ax-addrcl 7871 ax-mulcl 7872 ax-mulcom 7875 ax-mulass 7877 ax-distr 7878 ax-1rid 7881 ax-cnre 7885 |
This theorem depends on definitions: df-bi 116 df-3an 975 df-tru 1351 df-nf 1454 df-sb 1756 df-clab 2157 df-cleq 2163 df-clel 2166 df-nfc 2301 df-ral 2453 df-rex 2454 df-v 2732 df-un 3125 df-in 3127 df-ss 3134 df-sn 3589 df-pr 3590 df-op 3592 df-uni 3797 df-br 3990 df-iota 5160 df-fv 5206 df-ov 5856 df-2 8937 |
This theorem is referenced by: decbin2 9483 qbtwnrelemcalc 10212 expubnd 10533 trirecip 11464 ege2le3 11634 cos2tsin 11714 cos2bnd 11723 odd2np1 11832 opoe 11854 flodddiv4 11893 pythagtriplem4 12222 sin0pilem2 13497 cos2pi 13519 coskpi 13563 |
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