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Mirrors > Home > ILE Home > Th. List > 4t2e8 | Unicode version |
Description: 4 times 2 equals 8. (Contributed by NM, 2-Aug-2004.) |
Ref | Expression |
---|---|
4t2e8 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 4cn 8968 | . . 3 | |
2 | 1 | times2i 9021 | . 2 |
3 | 4p4e8 9035 | . 2 | |
4 | 2, 3 | eqtri 2196 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1353 (class class class)co 5865 caddc 7789 cmul 7791 c2 8941 c4 8943 c8 8947 |
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 709 ax-5 1445 ax-7 1446 ax-gen 1447 ax-ie1 1491 ax-ie2 1492 ax-8 1502 ax-10 1503 ax-11 1504 ax-i12 1505 ax-bndl 1507 ax-4 1508 ax-17 1524 ax-i9 1528 ax-ial 1532 ax-i5r 1533 ax-ext 2157 ax-resscn 7878 ax-1cn 7879 ax-1re 7880 ax-icn 7881 ax-addcl 7882 ax-addrcl 7883 ax-mulcl 7884 ax-mulcom 7887 ax-addass 7888 ax-mulass 7889 ax-distr 7890 ax-1rid 7893 ax-cnre 7897 |
This theorem depends on definitions: df-bi 117 df-3an 980 df-tru 1356 df-nf 1459 df-sb 1761 df-clab 2162 df-cleq 2168 df-clel 2171 df-nfc 2306 df-ral 2458 df-rex 2459 df-v 2737 df-un 3131 df-in 3133 df-ss 3140 df-sn 3595 df-pr 3596 df-op 3598 df-uni 3806 df-br 3999 df-iota 5170 df-fv 5216 df-ov 5868 df-2 8949 df-3 8950 df-4 8951 df-5 8952 df-6 8953 df-7 8954 df-8 8955 |
This theorem is referenced by: 8th4div3 9109 4t3e12 9452 sq4e2t8 10585 cu2 10586 sqoddm1div8 10641 cos2bnd 11734 lgsdir2lem2 13999 ex-exp 14037 |
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