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Mirrors > Home > MPE Home > Th. List > mul32d | Structured version Visualization version GIF version |
Description: Commutative/associative law that swaps the last two factors in a triple product. (Contributed by Mario Carneiro, 27-May-2016.) |
Ref | Expression |
---|---|
muld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
addcomd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
addcand.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
Ref | Expression |
---|---|
mul32d | ⊢ (𝜑 → ((𝐴 · 𝐵) · 𝐶) = ((𝐴 · 𝐶) · 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | muld.1 | . 2 ⊢ (𝜑 → 𝐴 ∈ ℂ) | |
2 | addcomd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ ℂ) | |
3 | addcand.3 | . 2 ⊢ (𝜑 → 𝐶 ∈ ℂ) | |
4 | mul32 10806 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 · 𝐵) · 𝐶) = ((𝐴 · 𝐶) · 𝐵)) | |
5 | 1, 2, 3, 4 | syl3anc 1367 | 1 ⊢ (𝜑 → ((𝐴 · 𝐵) · 𝐶) = ((𝐴 · 𝐶) · 𝐵)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 = wceq 1537 ∈ wcel 2114 (class class class)co 7156 ℂcc 10535 · cmul 10542 |
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 2793 ax-mulcom 10601 ax-mulass 10603 |
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 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-rab 3147 df-v 3496 df-dif 3939 df-un 3941 df-in 3943 df-ss 3952 df-nul 4292 df-if 4468 df-sn 4568 df-pr 4570 df-op 4574 df-uni 4839 df-br 5067 df-iota 6314 df-fv 6363 df-ov 7159 |
This theorem is referenced by: conjmul 11357 modmul1 13293 binom3 13586 bernneq 13591 expmulnbnd 13597 discr 13602 bcm1k 13676 bcp1n 13677 reccn2 14953 binomlem 15184 binomfallfaclem2 15394 tanadd 15520 eirrlem 15557 dvds2ln 15642 bezoutlem4 15890 divgcdcoprm0 16009 modprm0 16142 nrginvrcnlem 23300 tcphcphlem2 23839 csbren 24002 radcnvlem1 25001 tanarg 25202 cxpeq 25338 quad2 25417 binom4 25428 dquartlem2 25430 dquart 25431 quart1lem 25433 dvatan 25513 log2cnv 25522 basellem8 25665 bcmono 25853 gausslemma2d 25950 lgsquadlem1 25956 2lgslem3b 25973 2lgslem3c 25974 2lgslem3d 25975 rplogsumlem1 26060 dchrisumlem2 26066 chpdifbndlem1 26129 selberg3lem1 26133 selberg4 26137 selberg3r 26145 pntrlog2bndlem2 26154 pntrlog2bndlem3 26155 pntrlog2bndlem5 26157 pntlemf 26181 pntlemo 26183 ostth2lem1 26194 ostth2lem3 26211 logdivsqrle 31921 circum 32917 jm2.25 39616 jm2.27c 39624 binomcxplemnotnn0 40708 dvasinbx 42225 stirlinglem3 42381 dirkercncflem2 42409 cevathlem1 43144 itschlc0yqe 44767 |
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