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| Mirrors > Home > MPE Home > Th. List > Mathboxes > lactlmhm | Structured version Visualization version GIF version | ||
| Description: In an associative algebra 𝐴, left-multiplication by a fixed element of the algebra is a module homomorphism, analogous to ringlghm 20395. (Contributed by Thierry Arnoux, 3-Aug-2025.) |
| Ref | Expression |
|---|---|
| lactlmhm.b | ⊢ 𝐵 = (Base‘𝐴) |
| lactlmhm.m | ⊢ · = (.r‘𝐴) |
| lactlmhm.f | ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) |
| lactlmhm.a | ⊢ (𝜑 → 𝐴 ∈ AssAlg) |
| lactlmhm.c | ⊢ (𝜑 → 𝐶 ∈ 𝐵) |
| Ref | Expression |
|---|---|
| lactlmhm | ⊢ (𝜑 → 𝐹 ∈ (𝐴 LMHom 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | lactlmhm.a | . . 3 ⊢ (𝜑 → 𝐴 ∈ AssAlg) | |
| 2 | assalmod 21979 | . . 3 ⊢ (𝐴 ∈ AssAlg → 𝐴 ∈ LMod) | |
| 3 | 1, 2 | syl 18 | . 2 ⊢ (𝜑 → 𝐴 ∈ LMod) |
| 4 | lactlmhm.f | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) | |
| 5 | assaring 21980 | . . . . 5 ⊢ (𝐴 ∈ AssAlg → 𝐴 ∈ Ring) | |
| 6 | 1, 5 | syl 18 | . . . 4 ⊢ (𝜑 → 𝐴 ∈ Ring) |
| 7 | lactlmhm.c | . . . 4 ⊢ (𝜑 → 𝐶 ∈ 𝐵) | |
| 8 | lactlmhm.b | . . . . 5 ⊢ 𝐵 = (Base‘𝐴) | |
| 9 | lactlmhm.m | . . . . 5 ⊢ · = (.r‘𝐴) | |
| 10 | 8, 9 | ringlghm 20395 | . . . 4 ⊢ ((𝐴 ∈ Ring ∧ 𝐶 ∈ 𝐵) → (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) ∈ (𝐴 GrpHom 𝐴)) |
| 11 | 6, 7, 10 | syl2anc 595 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) ∈ (𝐴 GrpHom 𝐴)) |
| 12 | 4, 11 | eqeltrid 2873 | . 2 ⊢ (𝜑 → 𝐹 ∈ (𝐴 GrpHom 𝐴)) |
| 13 | eqidd 2770 | . 2 ⊢ (𝜑 → (Scalar‘𝐴) = (Scalar‘𝐴)) | |
| 14 | 1 | ad2antrr 738 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐴 ∈ AssAlg) |
| 15 | simplr 780 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝑎 ∈ (Base‘(Scalar‘𝐴))) | |
| 16 | 7 | ad2antrr 738 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐶 ∈ 𝐵) |
| 17 | simpr 489 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝑏 ∈ 𝐵) | |
| 18 | eqid 2769 | . . . . . . 7 ⊢ (Scalar‘𝐴) = (Scalar‘𝐴) | |
| 19 | eqid 2769 | . . . . . . 7 ⊢ (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐴)) | |
| 20 | eqid 2769 | . . . . . . 7 ⊢ ( ·𝑠 ‘𝐴) = ( ·𝑠 ‘𝐴) | |
| 21 | 8, 18, 19, 20, 9 | assaassr 21978 | . . . . . 6 ⊢ ((𝐴 ∈ AssAlg ∧ (𝑎 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝐶 ∈ 𝐵 ∧ 𝑏 ∈ 𝐵)) → (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐶 · 𝑏))) |
| 22 | 14, 15, 16, 17, 21 | syl13anc 1397 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐶 · 𝑏))) |
| 23 | oveq2 7419 | . . . . . 6 ⊢ (𝑥 = (𝑎( ·𝑠 ‘𝐴)𝑏) → (𝐶 · 𝑥) = (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏))) | |
| 24 | 3 | ad2antrr 738 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐴 ∈ LMod) |
| 25 | 8, 18, 20, 19, 24, 15, 17 | lmodvscld 20978 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝑎( ·𝑠 ‘𝐴)𝑏) ∈ 𝐵) |
| 26 | ovexd 7446 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏)) ∈ V) | |
| 27 | 4, 23, 25, 26 | fvmptd3 7014 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏))) |
| 28 | oveq2 7419 | . . . . . . 7 ⊢ (𝑥 = 𝑏 → (𝐶 · 𝑥) = (𝐶 · 𝑏)) | |
| 29 | ovexd 7446 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · 𝑏) ∈ V) | |
| 30 | 4, 28, 17, 29 | fvmptd3 7014 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘𝑏) = (𝐶 · 𝑏)) |
| 31 | 30 | oveq2d 7427 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐶 · 𝑏))) |
| 32 | 22, 27, 31 | 3eqtr4d 2814 | . . . 4 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))) |
| 33 | 32 | anasss 471 | . . 3 ⊢ ((𝜑 ∧ (𝑎 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑏 ∈ 𝐵)) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))) |
| 34 | 33 | ralrimivva 3214 | . 2 ⊢ (𝜑 → ∀𝑎 ∈ (Base‘(Scalar‘𝐴))∀𝑏 ∈ 𝐵 (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))) |
| 35 | 18, 18, 19, 8, 20, 20 | islmhm 21126 | . . 3 ⊢ (𝐹 ∈ (𝐴 LMHom 𝐴) ↔ ((𝐴 ∈ LMod ∧ 𝐴 ∈ LMod) ∧ (𝐹 ∈ (𝐴 GrpHom 𝐴) ∧ (Scalar‘𝐴) = (Scalar‘𝐴) ∧ ∀𝑎 ∈ (Base‘(Scalar‘𝐴))∀𝑏 ∈ 𝐵 (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))))) |
| 36 | 35 | biimpri 231 | . 2 ⊢ (((𝐴 ∈ LMod ∧ 𝐴 ∈ LMod) ∧ (𝐹 ∈ (𝐴 GrpHom 𝐴) ∧ (Scalar‘𝐴) = (Scalar‘𝐴) ∧ ∀𝑎 ∈ (Base‘(Scalar‘𝐴))∀𝑏 ∈ 𝐵 (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏)))) → 𝐹 ∈ (𝐴 LMHom 𝐴)) |
| 37 | 3, 3, 12, 13, 34, 36 | syl23anc 1402 | 1 ⊢ (𝜑 → 𝐹 ∈ (𝐴 LMHom 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 400 ∧ w3a 1101 = wceq 1567 ∈ wcel 2149 ∀wral 3085 Vcvv 3463 ↦ cmpt 5196 ‘cfv 6537 (class class class)co 7411 Basecbs 17269 .rcmulr 17311 Scalarcsca 17313 ·𝑠 cvsca 17314 GrpHom cghm 19283 Ringcrg 20315 LModclmod 20959 LMHom clmhm 21118 AssAlgcasa 21969 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 ax-cnex 11156 ax-resscn 11157 ax-1cn 11158 ax-icn 11159 ax-addcl 11160 ax-addrcl 11161 ax-mulcl 11162 ax-mulrcl 11163 ax-mulcom 11164 ax-addass 11165 ax-mulass 11166 ax-distr 11167 ax-i2m1 11168 ax-1ne0 11169 ax-1rid 11170 ax-rnegex 11171 ax-rrecex 11172 ax-cnre 11173 ax-pre-lttri 11174 ax-pre-lttrn 11175 ax-pre-ltadd 11176 ax-pre-mulgt0 11177 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-nel 3071 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-iun 4962 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-pred 6303 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-riota 7368 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-1st 7986 df-2nd 7987 df-frecs 8278 df-wrecs 8309 df-recs 8358 df-rdg 8397 df-er 8694 df-map 8826 df-en 8944 df-dom 8945 df-sdom 8946 df-pnf 11245 df-mnf 11246 df-xr 11247 df-ltxr 11248 df-le 11249 df-sub 11443 df-neg 11444 df-nn 12234 df-2 12303 df-sets 17224 df-slot 17242 df-ndx 17254 df-base 17270 df-plusg 17323 df-mgm 18698 df-sgrp 18777 df-mnd 18793 df-grp 19003 df-ghm 19284 df-mgp 20217 df-ring 20317 df-lmod 20961 df-lmhm 21121 df-assa 21972 |
| This theorem is referenced by: assalactf1o 33970 |
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