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Mirrors > Home > ILE Home > Th. List > 4t2e8 | 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 8956 | . . 3 ⊢ 4 ∈ ℂ | |
2 | 1 | times2i 9009 | . 2 ⊢ (4 · 2) = (4 + 4) |
3 | 4p4e8 9023 | . 2 ⊢ (4 + 4) = 8 | |
4 | 2, 3 | eqtri 2191 | 1 ⊢ (4 · 2) = 8 |
Colors of variables: wff set class |
Syntax hints: = wceq 1348 (class class class)co 5853 + caddc 7777 · cmul 7779 2c2 8929 4c4 8931 8c8 8935 |
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-addass 7876 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 df-3 8938 df-4 8939 df-5 8940 df-6 8941 df-7 8942 df-8 8943 |
This theorem is referenced by: 8th4div3 9097 4t3e12 9440 sq4e2t8 10573 cu2 10574 sqoddm1div8 10629 cos2bnd 11723 lgsdir2lem2 13724 ex-exp 13762 |
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