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Mirrors > Home > MPE Home > Th. List > 4t2e8 | Structured version Visualization version GIF version |
Description: 4 times 2 equals 8. (Contributed by NM, 2-Aug-2004.) |
Ref | Expression |
---|---|
4t2e8 | ⊢ (4 · 2) = 8 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | 4cn 11725 | . . 3 ⊢ 4 ∈ ℂ | |
2 | 1 | times2i 11779 | . 2 ⊢ (4 · 2) = (4 + 4) |
3 | 4p4e8 11795 | . 2 ⊢ (4 + 4) = 8 | |
4 | 2, 3 | eqtri 2846 | 1 ⊢ (4 · 2) = 8 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1537 (class class class)co 7158 + caddc 10542 · cmul 10544 2c2 11695 4c4 11697 8c8 11701 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2795 ax-resscn 10596 ax-1cn 10597 ax-icn 10598 ax-addcl 10599 ax-mulcl 10601 ax-mulcom 10603 ax-addass 10604 ax-mulass 10605 ax-distr 10606 ax-1rid 10609 ax-cnre 10612 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-clab 2802 df-cleq 2816 df-clel 2895 df-nfc 2965 df-ral 3145 df-rex 3146 df-rab 3149 df-v 3498 df-dif 3941 df-un 3943 df-in 3945 df-ss 3954 df-nul 4294 df-if 4470 df-sn 4570 df-pr 4572 df-op 4576 df-uni 4841 df-br 5069 df-iota 6316 df-fv 6365 df-ov 7161 df-2 11703 df-3 11704 df-4 11705 df-5 11706 df-6 11707 df-7 11708 df-8 11709 |
This theorem is referenced by: 8th4div3 11860 4t3e12 12199 sq4e2t8 13565 cu2 13566 sqoddm1div8 13607 cos2bnd 15543 2exp8 16425 8nprm 16447 19prm 16453 139prm 16459 1259lem2 16467 1259lem3 16468 1259lem4 16469 1259lem5 16470 2503lem1 16472 2503lem2 16473 4001lem1 16476 4001lem2 16477 4001lem3 16478 4001lem4 16479 quart1lem 25435 quart1 25436 quartlem1 25437 log2tlbnd 25525 log2ub 25529 bpos1 25861 bposlem8 25869 lgsdir2lem2 25904 2lgslem3a 25974 2lgslem3b 25975 2lgslem3c 25976 2lgslem3d 25977 2lgsoddprmlem2 25987 2lgsoddprmlem3c 25990 2lgsoddprmlem3d 25991 chebbnd1lem2 26048 chebbnd1lem3 26049 pntlemr 26180 ex-exp 28231 fmtno4prmfac 43741 139prmALT 43766 2exp7 43769 mod42tp1mod8 43774 3exp4mod41 43788 41prothprm 43791 8even 43885 2exp340mod341 43905 8exp8mod9 43908 |
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