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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 9062 | . . 3 ⊢ 4 ∈ ℂ | |
2 | 1 | times2i 9115 | . 2 ⊢ (4 · 2) = (4 + 4) |
3 | 4p4e8 9130 | . 2 ⊢ (4 + 4) = 8 | |
4 | 2, 3 | eqtri 2214 | 1 ⊢ (4 · 2) = 8 |
Colors of variables: wff set class |
Syntax hints: = wceq 1364 (class class class)co 5919 + caddc 7877 · cmul 7879 2c2 9035 4c4 9037 8c8 9041 |
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 710 ax-5 1458 ax-7 1459 ax-gen 1460 ax-ie1 1504 ax-ie2 1505 ax-8 1515 ax-10 1516 ax-11 1517 ax-i12 1518 ax-bndl 1520 ax-4 1521 ax-17 1537 ax-i9 1541 ax-ial 1545 ax-i5r 1546 ax-ext 2175 ax-resscn 7966 ax-1cn 7967 ax-1re 7968 ax-icn 7969 ax-addcl 7970 ax-addrcl 7971 ax-mulcl 7972 ax-mulcom 7975 ax-addass 7976 ax-mulass 7977 ax-distr 7978 ax-1rid 7981 ax-cnre 7985 |
This theorem depends on definitions: df-bi 117 df-3an 982 df-tru 1367 df-nf 1472 df-sb 1774 df-clab 2180 df-cleq 2186 df-clel 2189 df-nfc 2325 df-ral 2477 df-rex 2478 df-v 2762 df-un 3158 df-in 3160 df-ss 3167 df-sn 3625 df-pr 3626 df-op 3628 df-uni 3837 df-br 4031 df-iota 5216 df-fv 5263 df-ov 5922 df-2 9043 df-3 9044 df-4 9045 df-5 9046 df-6 9047 df-7 9048 df-8 9049 |
This theorem is referenced by: 8th4div3 9204 4t3e12 9548 sq4e2t8 10711 cu2 10712 sqoddm1div8 10767 cos2bnd 11906 lgsdir2lem2 15186 2lgslem3a 15250 2lgslem3b 15251 2lgslem3c 15252 2lgslem3d 15253 2lgsoddprmlem2 15263 2lgsoddprmlem3c 15266 2lgsoddprmlem3d 15267 ex-exp 15289 |
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