| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > mul4d | Structured version Visualization version GIF version | ||
| Description: Rearrangement of 4 factors. (Contributed by Mario Carneiro, 27-May-2016.) |
| Ref | Expression |
|---|---|
| muld.1 | ⊢ (𝜑 → 𝐴 ∈ ℂ) |
| addcomd.2 | ⊢ (𝜑 → 𝐵 ∈ ℂ) |
| addcand.3 | ⊢ (𝜑 → 𝐶 ∈ ℂ) |
| mul4d.4 | ⊢ (𝜑 → 𝐷 ∈ ℂ) |
| Ref | Expression |
|---|---|
| mul4d | ⊢ (𝜑 → ((𝐴 · 𝐵) · (𝐶 · 𝐷)) = ((𝐴 · 𝐶) · (𝐵 · 𝐷))) |
| 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 | mul4d.4 | . 2 ⊢ (𝜑 → 𝐷 ∈ ℂ) | |
| 5 | mul4 11406 | . 2 ⊢ (((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ) ∧ (𝐶 ∈ ℂ ∧ 𝐷 ∈ ℂ)) → ((𝐴 · 𝐵) · (𝐶 · 𝐷)) = ((𝐴 · 𝐶) · (𝐵 · 𝐷))) | |
| 6 | 1, 2, 3, 4, 5 | syl22anc 852 | 1 ⊢ (𝜑 → ((𝐴 · 𝐵) · (𝐶 · 𝐷)) = ((𝐴 · 𝐶) · (𝐵 · 𝐷))) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 = wceq 1570 ∈ wcel 2145 (class class class)co 7417 ℂcc 11126 · cmul 11133 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-ext 2734 ax-mulcl 11190 ax-mulcom 11192 ax-mulass 11194 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-sb 2100 df-clab 2741 df-cleq 2754 df-clel 2837 df-rab 3415 df-v 3455 df-dif 3905 df-un 3907 df-ss 3919 df-nul 4283 df-if 4486 df-sn 4588 df-pr 4590 df-op 4594 df-uni 4871 df-br 5108 df-iota 6493 df-fv 6545 df-ov 7420 |
| This theorem is used by: remullem 15219 absmul 15385 binomrisefac 16134 cosadd 16259 tanadd 16261 eulerthlem2 16879 mul4sqlem 17051 odadd2 19982 itgmulc2 26068 plymullem1 26447 chordthmlem4 27080 heron 27083 quartlem1 27102 dchrmulcl 27493 bposlem9 27536 lgsdir 27576 lgsdi 27578 lgsquad2lem1 27628 chtppilimlem1 27717 rplogsumlem1 27728 dchrvmasumlem1 27739 dchrvmasum2lem 27740 chpdifbndlem1 27797 pntlemf 27849 brbtwn2 29370 colinearalglem4 29374 binom2subadd 33220 zringfrac 33972 constrmulcl 34289 madjusmdetlem4 34348 hgt750lemf 35169 hgt750leme 35174 circum 36261 itgmulc2nc 38445 flt4lem5e 43510 pellexlem6 43683 pell1234qrmulcl 43704 rmxyadd 43770 wallispi2lem2 46908 dirkertrigeqlem3 46936 cevathlem1 47703 sin5tlem1 47745 sin5tlem4 47748 itsclc0xyqsolr 49707 |
| Copyright terms: Public domain | W3C validator |