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Mirrors > Home > ILE Home > Th. List > mulext2 | GIF version |
Description: Right extensionality for complex multiplication. (Contributed by Jim Kingdon, 22-Feb-2020.) |
Ref | Expression |
---|---|
mulext2 | ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐶 · 𝐴) # (𝐶 · 𝐵) → 𝐴 # 𝐵)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | simp3 941 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐶 ∈ ℂ) | |
2 | simp1 939 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐴 ∈ ℂ) | |
3 | 1, 2 | mulcomd 7279 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐶 · 𝐴) = (𝐴 · 𝐶)) |
4 | simp2 940 | . . . 4 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → 𝐵 ∈ ℂ) | |
5 | 1, 4 | mulcomd 7279 | . . 3 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → (𝐶 · 𝐵) = (𝐵 · 𝐶)) |
6 | 3, 5 | breq12d 3819 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐶 · 𝐴) # (𝐶 · 𝐵) ↔ (𝐴 · 𝐶) # (𝐵 · 𝐶))) |
7 | mulext1 7856 | . 2 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐴 · 𝐶) # (𝐵 · 𝐶) → 𝐴 # 𝐵)) | |
8 | 6, 7 | sylbid 148 | 1 ⊢ ((𝐴 ∈ ℂ ∧ 𝐵 ∈ ℂ ∧ 𝐶 ∈ ℂ) → ((𝐶 · 𝐴) # (𝐶 · 𝐵) → 𝐴 # 𝐵)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∧ w3a 920 ∈ wcel 1434 class class class wbr 3806 (class class class)co 5565 ℂcc 7118 · cmul 7125 # cap 7825 |
This theorem was proved from axioms: ax-1 5 ax-2 6 ax-mp 7 ax-ia1 104 ax-ia2 105 ax-ia3 106 ax-in1 577 ax-in2 578 ax-io 663 ax-5 1377 ax-7 1378 ax-gen 1379 ax-ie1 1423 ax-ie2 1424 ax-8 1436 ax-10 1437 ax-11 1438 ax-i12 1439 ax-bndl 1440 ax-4 1441 ax-13 1445 ax-14 1446 ax-17 1460 ax-i9 1464 ax-ial 1468 ax-i5r 1469 ax-ext 2065 ax-sep 3917 ax-pow 3969 ax-pr 3993 ax-un 4217 ax-setind 4309 ax-cnex 7206 ax-resscn 7207 ax-1cn 7208 ax-1re 7209 ax-icn 7210 ax-addcl 7211 ax-addrcl 7212 ax-mulcl 7213 ax-mulrcl 7214 ax-addcom 7215 ax-mulcom 7216 ax-addass 7217 ax-mulass 7218 ax-distr 7219 ax-i2m1 7220 ax-0lt1 7221 ax-1rid 7222 ax-0id 7223 ax-rnegex 7224 ax-precex 7225 ax-cnre 7226 ax-pre-ltirr 7227 ax-pre-ltwlin 7228 ax-pre-lttrn 7229 ax-pre-apti 7230 ax-pre-ltadd 7231 ax-pre-mulgt0 7232 ax-pre-mulext 7233 |
This theorem depends on definitions: df-bi 115 df-3an 922 df-tru 1288 df-fal 1291 df-nf 1391 df-sb 1688 df-eu 1946 df-mo 1947 df-clab 2070 df-cleq 2076 df-clel 2079 df-nfc 2212 df-ne 2250 df-nel 2345 df-ral 2358 df-rex 2359 df-reu 2360 df-rab 2362 df-v 2613 df-sbc 2826 df-dif 2985 df-un 2987 df-in 2989 df-ss 2996 df-pw 3403 df-sn 3423 df-pr 3424 df-op 3426 df-uni 3623 df-br 3807 df-opab 3861 df-id 4077 df-xp 4398 df-rel 4399 df-cnv 4400 df-co 4401 df-dm 4402 df-iota 4918 df-fun 4955 df-fv 4961 df-riota 5521 df-ov 5568 df-oprab 5569 df-mpt2 5570 df-pnf 7294 df-mnf 7295 df-ltxr 7297 df-sub 7425 df-neg 7426 df-reap 7819 df-ap 7826 |
This theorem is referenced by: mulext 7858 |
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