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Theorem ressascl 15123
Description: The lifting of scalars is invariant between subalgebras and superalgebras. (Contributed by Mario Carneiro, 9-Mar-2015.)
Hypotheses
Ref Expression
ressascl.a 𝐴 = (algSc‘𝑊)
ressascl.x 𝑋 = (𝑊 ↾s 𝑆)
Assertion
Ref Expression
ressascl (𝑆 ∈ (SubRing‘𝑊) → 𝐴 = (algSc‘𝑋))

Proof of Theorem ressascl
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 subrgrcl 14618 . . . . 5 (𝑆 ∈ (SubRing‘𝑊) → 𝑊 ∈ Ring)
2 ressascl.x . . . . . 6 𝑋 = (𝑊 ↾s 𝑆)
3 eqid 2238 . . . . . 6 (Scalar‘𝑊) = (Scalar‘𝑊)
42, 3ressscag 13590 . . . . 5 ((𝑊 ∈ Ring ∧ 𝑆 ∈ (SubRing‘𝑊)) → (Scalar‘𝑊) = (Scalar‘𝑋))
51, 4mpancom 426 . . . 4 (𝑆 ∈ (SubRing‘𝑊) → (Scalar‘𝑊) = (Scalar‘𝑋))
65fveq2d 5699 . . 3 (𝑆 ∈ (SubRing‘𝑊) → (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑋)))
7 eqid 2238 . . . . . 6 ( ·𝑠 ‘𝑊) = ( ·𝑠 ‘𝑊)
82, 7ressvscag 13591 . . . . 5 ((𝑊 ∈ Ring ∧ 𝑆 ∈ (SubRing‘𝑊)) → ( ·𝑠 ‘𝑊) = ( ·𝑠 ‘𝑋))
91, 8mpancom 426 . . . 4 (𝑆 ∈ (SubRing‘𝑊) → ( ·𝑠 ‘𝑊) = ( ·𝑠 ‘𝑋))
10 eqidd 2239 . . . 4 (𝑆 ∈ (SubRing‘𝑊) → 𝑥 = 𝑥)
11 eqid 2238 . . . . 5 (1r‘𝑊) = (1r‘𝑊)
122, 11subrg1 14623 . . . 4 (𝑆 ∈ (SubRing‘𝑊) → (1r‘𝑊) = (1r‘𝑋))
139, 10, 12oveq123d 6106 . . 3 (𝑆 ∈ (SubRing‘𝑊) → (𝑥( ·𝑠 ‘𝑊)(1r‘𝑊)) = (𝑥( ·𝑠 ‘𝑋)(1r‘𝑋)))
146, 13mpteq12dv 4213 . 2 (𝑆 ∈ (SubRing‘𝑊) → (𝑥 ∈ (Base‘(Scalar‘𝑊)) ↦ (𝑥( ·𝑠 ‘𝑊)(1r‘𝑊))) = (𝑥 ∈ (Base‘(Scalar‘𝑋)) ↦ (𝑥( ·𝑠 ‘𝑋)(1r‘𝑋))))
15 ressascl.a . . 3 𝐴 = (algSc‘𝑊)
16 eqid 2238 . . 3 (Base‘(Scalar‘𝑊)) = (Base‘(Scalar‘𝑊))
1715, 3, 16, 7, 11asclfval 15105 . 2 𝐴 = (𝑥 ∈ (Base‘(Scalar‘𝑊)) ↦ (𝑥( ·𝑠 ‘𝑊)(1r‘𝑊)))
18 eqid 2238 . . 3 (algSc‘𝑋) = (algSc‘𝑋)
19 eqid 2238 . . 3 (Scalar‘𝑋) = (Scalar‘𝑋)
20 eqid 2238 . . 3 (Base‘(Scalar‘𝑋)) = (Base‘(Scalar‘𝑋))
21 eqid 2238 . . 3 ( ·𝑠 ‘𝑋) = ( ·𝑠 ‘𝑋)
22 eqid 2238 . . 3 (1r‘𝑋) = (1r‘𝑋)
2318, 19, 20, 21, 22asclfval 15105 . 2 (algSc‘𝑋) = (𝑥 ∈ (Base‘(Scalar‘𝑋)) ↦ (𝑥( ·𝑠 ‘𝑋)(1r‘𝑋)))
2414, 17, 233eqtr4g 2296 1 (𝑆 ∈ (SubRing‘𝑊) → 𝐴 = (algSc‘𝑋))
Colors of variables:    wff set class
This proof depends on syntax axioms:   → wi 4   = wceq 1402   ∈ wcel 2209   ↦ cmpt 4192  ‘cfv 5377  (class class class)co 6085  Basecbs 13404   ↾s cress 13405  Scalarcsca 13487   ·𝑠 cvsca 13488  1rcur 14346  Ringcrg 14384  SubRingcsubrg 14609  algSccascl 15082
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-in1 623  ax-in2 624  ax-io 721  ax-5 1500  ax-7 1501  ax-gen 1502  ax-ie1 1546  ax-ie2 1547  ax-8 1557  ax-10 1558  ax-11 1559  ax-i12 1560  ax-bndl 1562  ax-4 1563  ax-17 1579  ax-i9 1583  ax-ial 1587  ax-i5r 1588  ax-14 2212  ax-ext 2220  ax-coll 4246  ax-sep 4249  ax-pow 4311  ax-pr 4346  ax-un 4578  ax-setind 4684  ax-cnex 8271  ax-resscn 8272  ax-1cn 8273  ax-1re 8274  ax-icn 8275  ax-addcl 8276  ax-addrcl 8277  ax-mulcl 8278  ax-addcom 8280  ax-addass 8282  ax-i2m1 8285  ax-0lt1 8286  ax-0id 8288  ax-rnegex 8289  ax-pre-ltirr 8292  ax-pre-lttrn 8294  ax-pre-ltadd 8296
This proof depends on definitions:  df-bi 117  df-3an 1011  df-tru 1405  df-fal 1408  df-nf 1514  df-sb 1816  df-eu 2089  df-mo 2090  df-clab 2225  df-cleq 2231  df-clel 2234  df-nfc 2381  df-ne 2421  df-nel 2516  df-ral 2533  df-rex 2534  df-reu 2535  df-rmo 2536  df-rab 2537  df-v 2823  df-sbc 3052  df-csb 3148  df-dif 3222  df-un 3224  df-in 3226  df-ss 3233  df-nul 3521  df-pw 3690  df-sn 3715  df-pr 3716  df-op 3718  df-uni 3936  df-int 3971  df-iun 4014  df-br 4131  df-opab 4193  df-mpt 4194  df-id 4438  df-xp 4780  df-rel 4781  df-cnv 4782  df-co 4783  df-dm 4784  df-rn 4785  df-res 4786  df-ima 4787  df-iota 5337  df-fun 5379  df-fn 5380  df-f 5381  df-f1 5382  df-fo 5383  df-f1o 5384  df-fv 5385  df-riota 6038  df-ov 6088  df-oprab 6089  df-mpo 6090  df-pnf 8363  df-mnf 8364  df-ltxr 8366  df-inn 9308  df-2 9366  df-3 9367  df-4 9368  df-5 9369  df-6 9370  df-ndx 13407  df-slot 13408  df-base 13410  df-sets 13411  df-iress 13412  df-plusg 13497  df-mulr 13498  df-sca 13500  df-vsca 13501  df-0g 13665  df-mgm 13729  df-sgrp 13770  df-mnd 13783  df-subg 14026  df-mgp 14302  df-ur 14347  df-ring 14386  df-subrg 14611  df-ascl 15085
This theorem is used by: (None)
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