Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
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 8935 | . . 3 | |
2 | 1 | times2i 8988 | . 2 |
3 | 4p4e8 9002 | . 2 | |
4 | 2, 3 | eqtri 2186 | 1 |
Colors of variables: wff set class |
Syntax hints: wceq 1343 (class class class)co 5842 caddc 7756 cmul 7758 c2 8908 c4 8910 c8 8914 |
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-1re 7847 ax-icn 7848 ax-addcl 7849 ax-addrcl 7850 ax-mulcl 7851 ax-mulcom 7854 ax-addass 7855 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 df-3 8917 df-4 8918 df-5 8919 df-6 8920 df-7 8921 df-8 8922 |
This theorem is referenced by: 8th4div3 9076 4t3e12 9419 sq4e2t8 10552 cu2 10553 sqoddm1div8 10608 cos2bnd 11701 lgsdir2lem2 13580 ex-exp 13618 |
Copyright terms: Public domain | W3C validator |