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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 10975 | . . 3 ⊢ 4 ∈ ℂ | |
2 | 1 | times2i 11025 | . 2 ⊢ (4 · 2) = (4 + 4) |
3 | 4p4e8 11041 | . 2 ⊢ (4 + 4) = 8 | |
4 | 2, 3 | eqtri 2632 | 1 ⊢ (4 · 2) = 8 |
Colors of variables: wff setvar class |
Syntax hints: = wceq 1475 (class class class)co 6549 + caddc 9818 · cmul 9820 2c2 10947 4c4 10949 8c8 10953 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 ax-resscn 9872 ax-1cn 9873 ax-icn 9874 ax-addcl 9875 ax-addrcl 9876 ax-mulcl 9877 ax-mulrcl 9878 ax-mulcom 9879 ax-addass 9880 ax-mulass 9881 ax-distr 9882 ax-i2m1 9883 ax-1ne0 9884 ax-1rid 9885 ax-rrecex 9887 ax-cnre 9888 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-3an 1033 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-ne 2782 df-ral 2901 df-rex 2902 df-rab 2905 df-v 3175 df-dif 3543 df-un 3545 df-in 3547 df-ss 3554 df-nul 3875 df-if 4037 df-sn 4126 df-pr 4128 df-op 4132 df-uni 4373 df-br 4584 df-iota 5768 df-fv 5812 df-ov 6552 df-2 10956 df-3 10957 df-4 10958 df-5 10959 df-6 10960 df-7 10961 df-8 10962 |
This theorem is referenced by: 8th4div3 11129 4t3e12 11508 sq4e2t8 12824 cu2 12825 sqoddm1div8 12890 cos2bnd 14757 2exp8 15634 8nprm 15656 19prm 15663 139prm 15669 1259lem2 15677 1259lem3 15678 1259lem4 15679 1259lem5 15680 2503lem1 15682 2503lem2 15683 4001lem1 15686 4001lem2 15687 4001lem3 15688 4001lem4 15689 quart1lem 24382 quart1 24383 quartlem1 24384 log2tlbnd 24472 log2ub 24476 bpos1 24808 bposlem8 24816 lgsdir2lem2 24851 2lgslem3a 24921 2lgslem3b 24922 2lgslem3c 24923 2lgslem3d 24924 2lgsoddprmlem2 24934 2lgsoddprmlem3c 24937 2lgsoddprmlem3d 24938 chebbnd1lem2 24959 chebbnd1lem3 24960 pntlemr 25091 ex-exp 26699 fmtno4prmfac 40022 139prmALT 40049 2exp7 40052 mod42tp1mod8 40057 3exp4mod41 40071 41prothprm 40074 8even 40160 |
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