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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 20215. (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 21785 | . . 3 ⊢ (𝐴 ∈ AssAlg → 𝐴 ∈ LMod) | |
| 3 | 1, 2 | syl 17 | . 2 ⊢ (𝜑 → 𝐴 ∈ LMod) |
| 4 | lactlmhm.f | . . 3 ⊢ 𝐹 = (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) | |
| 5 | assaring 21786 | . . . . 5 ⊢ (𝐴 ∈ AssAlg → 𝐴 ∈ Ring) | |
| 6 | 1, 5 | syl 17 | . . . 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 20215 | . . . 4 ⊢ ((𝐴 ∈ Ring ∧ 𝐶 ∈ 𝐵) → (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) ∈ (𝐴 GrpHom 𝐴)) |
| 11 | 6, 7, 10 | syl2anc 584 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐵 ↦ (𝐶 · 𝑥)) ∈ (𝐴 GrpHom 𝐴)) |
| 12 | 4, 11 | eqeltrid 2832 | . 2 ⊢ (𝜑 → 𝐹 ∈ (𝐴 GrpHom 𝐴)) |
| 13 | eqidd 2730 | . 2 ⊢ (𝜑 → (Scalar‘𝐴) = (Scalar‘𝐴)) | |
| 14 | 1 | ad2antrr 726 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐴 ∈ AssAlg) |
| 15 | simplr 768 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝑎 ∈ (Base‘(Scalar‘𝐴))) | |
| 16 | 7 | ad2antrr 726 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐶 ∈ 𝐵) |
| 17 | simpr 484 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝑏 ∈ 𝐵) | |
| 18 | eqid 2729 | . . . . . . 7 ⊢ (Scalar‘𝐴) = (Scalar‘𝐴) | |
| 19 | eqid 2729 | . . . . . . 7 ⊢ (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐴)) | |
| 20 | eqid 2729 | . . . . . . 7 ⊢ ( ·𝑠 ‘𝐴) = ( ·𝑠 ‘𝐴) | |
| 21 | 8, 18, 19, 20, 9 | assaassr 21784 | . . . . . 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 1374 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐶 · 𝑏))) |
| 23 | oveq2 7361 | . . . . . 6 ⊢ (𝑥 = (𝑎( ·𝑠 ‘𝐴)𝑏) → (𝐶 · 𝑥) = (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏))) | |
| 24 | 3 | ad2antrr 726 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → 𝐴 ∈ LMod) |
| 25 | 8, 18, 20, 19, 24, 15, 17 | lmodvscld 20800 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝑎( ·𝑠 ‘𝐴)𝑏) ∈ 𝐵) |
| 26 | ovexd 7388 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏)) ∈ V) | |
| 27 | 4, 23, 25, 26 | fvmptd3 6957 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝐶 · (𝑎( ·𝑠 ‘𝐴)𝑏))) |
| 28 | oveq2 7361 | . . . . . . 7 ⊢ (𝑥 = 𝑏 → (𝐶 · 𝑥) = (𝐶 · 𝑏)) | |
| 29 | ovexd 7388 | . . . . . . 7 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐶 · 𝑏) ∈ V) | |
| 30 | 4, 28, 17, 29 | fvmptd3 6957 | . . . . . 6 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘𝑏) = (𝐶 · 𝑏)) |
| 31 | 30 | oveq2d 7369 | . . . . 5 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐶 · 𝑏))) |
| 32 | 22, 27, 31 | 3eqtr4d 2774 | . . . 4 ⊢ (((𝜑 ∧ 𝑎 ∈ (Base‘(Scalar‘𝐴))) ∧ 𝑏 ∈ 𝐵) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))) |
| 33 | 32 | anasss 466 | . . 3 ⊢ ((𝜑 ∧ (𝑎 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑏 ∈ 𝐵)) → (𝐹‘(𝑎( ·𝑠 ‘𝐴)𝑏)) = (𝑎( ·𝑠 ‘𝐴)(𝐹‘𝑏))) |
| 34 | 33 | ralrimivva 3172 | . 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 20949 | . . 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 228 | . 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 1379 | 1 ⊢ (𝜑 → 𝐹 ∈ (𝐴 LMHom 𝐴)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∧ wa 395 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ∀wral 3044 Vcvv 3438 ↦ cmpt 5176 ‘cfv 6486 (class class class)co 7353 Basecbs 17138 .rcmulr 17180 Scalarcsca 17182 ·𝑠 cvsca 17183 GrpHom cghm 19109 Ringcrg 20136 LModclmod 20781 LMHom clmhm 20941 AssAlgcasa 21775 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-er 8632 df-map 8762 df-en 8880 df-dom 8881 df-sdom 8882 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-nn 12147 df-2 12209 df-sets 17093 df-slot 17111 df-ndx 17123 df-base 17139 df-plusg 17192 df-mgm 18532 df-sgrp 18611 df-mnd 18627 df-grp 18833 df-ghm 19110 df-mgp 20044 df-ring 20138 df-lmod 20783 df-lmhm 20944 df-assa 21778 |
| This theorem is referenced by: assalactf1o 33607 |
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