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Theorem fedgmullem1 33813
Description: Lemma for fedgmul 33815. (Contributed by Thierry Arnoux, 20-Jul-2023.)
Hypotheses
Ref Expression
fedgmul.a 𝐴 = ((subringAlg ‘𝐸)‘𝑉)
fedgmul.b 𝐵 = ((subringAlg ‘𝐸)‘𝑈)
fedgmul.c 𝐶 = ((subringAlg ‘𝐹)‘𝑉)
fedgmul.f 𝐹 = (𝐸s 𝑈)
fedgmul.k 𝐾 = (𝐸s 𝑉)
fedgmul.1 (𝜑𝐸 ∈ DivRing)
fedgmul.2 (𝜑𝐹 ∈ DivRing)
fedgmul.3 (𝜑𝐾 ∈ DivRing)
fedgmul.4 (𝜑𝑈 ∈ (SubRing‘𝐸))
fedgmul.5 (𝜑𝑉 ∈ (SubRing‘𝐹))
fedgmullem.d 𝐷 = (𝑗𝑌, 𝑖𝑋 ↦ (𝑖(.r𝐸)𝑗))
fedgmullem.h 𝐻 = (𝑗𝑌, 𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖))
fedgmullem.x (𝜑𝑋 ∈ (LBasis‘𝐶))
fedgmullem.y (𝜑𝑌 ∈ (LBasis‘𝐵))
fedgmullem1.a (𝜑𝑍 ∈ (Base‘𝐴))
fedgmullem1.l (𝜑𝐿:𝑌⟶(Base‘(Scalar‘𝐵)))
fedgmullem1.1 (𝜑𝐿 finSupp (0g‘(Scalar‘𝐵)))
fedgmullem1.z (𝜑𝑍 = (𝐵 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
fedgmullem1.g (𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
fedgmullem1.2 ((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)))
fedgmullem1.3 ((𝜑𝑗𝑌) → (𝐿𝑗) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
Assertion
Ref Expression
fedgmullem1 (𝜑 → (𝐻 finSupp (0g‘(Scalar‘𝐴)) ∧ 𝑍 = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷))))
Distinct variable groups:   𝐴,𝑖,𝑗   𝐵,𝑗   𝐶,𝑖,𝑗   𝐷,𝑖,𝑗   𝑖,𝐸,𝑗   𝑖,𝐺,𝑗   𝑖,𝐻,𝑗   𝑗,𝐿   𝑈,𝑖   𝑖,𝑋,𝑗   𝑖,𝑌,𝑗   𝜑,𝑖,𝑗
Allowed substitution hints:   𝐵(𝑖)   𝑈(𝑗)   𝐹(𝑖,𝑗)   𝐾(𝑖,𝑗)   𝐿(𝑖)   𝑉(𝑖,𝑗)   𝑍(𝑖,𝑗)

Proof of Theorem fedgmullem1
Dummy variables 𝑢 𝑘 𝑙 𝑔 𝑤 𝑣 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 fedgmullem1.g . . . . 5 (𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
2 simpllr 776 . . . . . . . . . . . . 13 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
3 simplr 769 . . . . . . . . . . . . 13 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → 𝑗𝑌)
42, 3ffvelcdmd 7041 . . . . . . . . . . . 12 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5 elmapi 8800 . . . . . . . . . . . 12 ((𝐺𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
64, 5syl 17 . . . . . . . . . . 11 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
76anasss 466 . . . . . . . . . 10 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
8 simprr 773 . . . . . . . . . 10 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → 𝑖𝑋)
97, 8ffvelcdmd 7041 . . . . . . . . 9 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)))
10 fedgmul.k . . . . . . . . . . . . 13 𝐾 = (𝐸s 𝑉)
11 fedgmul.a . . . . . . . . . . . . . . 15 𝐴 = ((subringAlg ‘𝐸)‘𝑉)
1211a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐴 = ((subringAlg ‘𝐸)‘𝑉))
13 fedgmul.4 . . . . . . . . . . . . . . . . 17 (𝜑𝑈 ∈ (SubRing‘𝐸))
14 fedgmul.5 . . . . . . . . . . . . . . . . 17 (𝜑𝑉 ∈ (SubRing‘𝐹))
15 fedgmul.f . . . . . . . . . . . . . . . . . . 19 𝐹 = (𝐸s 𝑈)
1615subsubrg 20548 . . . . . . . . . . . . . . . . . 18 (𝑈 ∈ (SubRing‘𝐸) → (𝑉 ∈ (SubRing‘𝐹) ↔ (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈)))
1716biimpa 476 . . . . . . . . . . . . . . . . 17 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉 ∈ (SubRing‘𝐹)) → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈))
1813, 14, 17syl2anc 585 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈))
1918simpld 494 . . . . . . . . . . . . . . 15 (𝜑𝑉 ∈ (SubRing‘𝐸))
20 eqid 2737 . . . . . . . . . . . . . . . 16 (Base‘𝐸) = (Base‘𝐸)
2120subrgss 20522 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐸) → 𝑉 ⊆ (Base‘𝐸))
2219, 21syl 17 . . . . . . . . . . . . . 14 (𝜑𝑉 ⊆ (Base‘𝐸))
2312, 22srasca 21149 . . . . . . . . . . . . 13 (𝜑 → (𝐸s 𝑉) = (Scalar‘𝐴))
2410, 23eqtrid 2784 . . . . . . . . . . . 12 (𝜑𝐾 = (Scalar‘𝐴))
2518simprd 495 . . . . . . . . . . . . . . 15 (𝜑𝑉𝑈)
26 ressabs 17189 . . . . . . . . . . . . . . 15 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈) → ((𝐸s 𝑈) ↾s 𝑉) = (𝐸s 𝑉))
2713, 25, 26syl2anc 585 . . . . . . . . . . . . . 14 (𝜑 → ((𝐸s 𝑈) ↾s 𝑉) = (𝐸s 𝑉))
2815oveq1i 7380 . . . . . . . . . . . . . 14 (𝐹s 𝑉) = ((𝐸s 𝑈) ↾s 𝑉)
2927, 28, 103eqtr4g 2797 . . . . . . . . . . . . 13 (𝜑 → (𝐹s 𝑉) = 𝐾)
30 fedgmul.c . . . . . . . . . . . . . . 15 𝐶 = ((subringAlg ‘𝐹)‘𝑉)
3130a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐶 = ((subringAlg ‘𝐹)‘𝑉))
32 eqid 2737 . . . . . . . . . . . . . . . 16 (Base‘𝐹) = (Base‘𝐹)
3332subrgss 20522 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐹) → 𝑉 ⊆ (Base‘𝐹))
3414, 33syl 17 . . . . . . . . . . . . . 14 (𝜑𝑉 ⊆ (Base‘𝐹))
3531, 34srasca 21149 . . . . . . . . . . . . 13 (𝜑 → (𝐹s 𝑉) = (Scalar‘𝐶))
3629, 35eqtr3d 2774 . . . . . . . . . . . 12 (𝜑𝐾 = (Scalar‘𝐶))
3724, 36eqtr3d 2774 . . . . . . . . . . 11 (𝜑 → (Scalar‘𝐴) = (Scalar‘𝐶))
3837fveq2d 6848 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
3938ad2antrr 727 . . . . . . . . 9 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
409, 39eleqtrrd 2840 . . . . . . . 8 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
4140ralrimivva 3181 . . . . . . 7 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → ∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
42 fedgmullem.h . . . . . . . 8 𝐻 = (𝑗𝑌, 𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖))
4342fmpo 8024 . . . . . . 7 (∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
4441, 43sylib 218 . . . . . 6 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
45 fvexd 6859 . . . . . . 7 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (Base‘(Scalar‘𝐴)) ∈ V)
46 fedgmullem.y . . . . . . . . 9 (𝜑𝑌 ∈ (LBasis‘𝐵))
47 fedgmullem.x . . . . . . . . 9 (𝜑𝑋 ∈ (LBasis‘𝐶))
4846, 47xpexd 7708 . . . . . . . 8 (𝜑 → (𝑌 × 𝑋) ∈ V)
4948adantr 480 . . . . . . 7 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝑌 × 𝑋) ∈ V)
5045, 49elmapd 8791 . . . . . 6 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴))))
5144, 50mpbird 257 . . . . 5 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
521, 51mpdan 688 . . . 4 (𝜑𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
53 simpl 482 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝜑)
5453adantr 480 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝜑)
551ffvelcdmda 7040 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝐺𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5655, 5syl 17 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5756adantr 480 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5838feq3d 6657 . . . . . . . . . . 11 (𝜑 → ((𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)) ↔ (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶))))
5958biimpar 477 . . . . . . . . . 10 ((𝜑 ∧ (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶))) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
6054, 57, 59syl2anc 585 . . . . . . . . 9 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
61 simpr 484 . . . . . . . . 9 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖𝑋)
6260, 61ffvelcdmd 7041 . . . . . . . 8 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6362ralrimiva 3130 . . . . . . 7 ((𝜑𝑗𝑌) → ∀𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6463ralrimiva 3130 . . . . . 6 (𝜑 → ∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6564, 43sylib 218 . . . . 5 (𝜑𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
6665ffund 6676 . . . 4 (𝜑 → Fun 𝐻)
67 fedgmul.1 . . . . . 6 (𝜑𝐸 ∈ DivRing)
68 drngring 20686 . . . . . 6 (𝐸 ∈ DivRing → 𝐸 ∈ Ring)
6967, 68syl 17 . . . . 5 (𝜑𝐸 ∈ Ring)
70 ringgrp 20190 . . . . 5 (𝐸 ∈ Ring → 𝐸 ∈ Grp)
71 eqid 2737 . . . . . 6 (0g𝐸) = (0g𝐸)
7220, 71grpidcl 18912 . . . . 5 (𝐸 ∈ Grp → (0g𝐸) ∈ (Base‘𝐸))
7369, 70, 723syl 18 . . . 4 (𝜑 → (0g𝐸) ∈ (Base‘𝐸))
74 fedgmullem1.1 . . . . . . 7 (𝜑𝐿 finSupp (0g‘(Scalar‘𝐵)))
7574fsuppimpd 9286 . . . . . 6 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ∈ Fin)
76 simpl 482 . . . . . . . 8 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝜑)
77 simpr 484 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵)))))
7877eldifad 3915 . . . . . . . 8 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗𝑌)
79 fedgmullem1.l . . . . . . . . . 10 (𝜑𝐿:𝑌⟶(Base‘(Scalar‘𝐵)))
80 ssidd 3959 . . . . . . . . . 10 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
81 fvexd 6859 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) ∈ V)
8279, 80, 46, 81suppssr 8149 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐿𝑗) = (0g‘(Scalar‘𝐵)))
83 fedgmullem1.3 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐿𝑗) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
8478, 83syldan 592 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐿𝑗) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
85 fedgmul.b . . . . . . . . . . . . . . 15 𝐵 = ((subringAlg ‘𝐸)‘𝑈)
8685a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐵 = ((subringAlg ‘𝐸)‘𝑈))
8720subrgss 20522 . . . . . . . . . . . . . . 15 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ⊆ (Base‘𝐸))
8813, 87syl 17 . . . . . . . . . . . . . 14 (𝜑𝑈 ⊆ (Base‘𝐸))
8986, 88srasca 21149 . . . . . . . . . . . . 13 (𝜑 → (𝐸s 𝑈) = (Scalar‘𝐵))
9015, 89eqtrid 2784 . . . . . . . . . . . 12 (𝜑𝐹 = (Scalar‘𝐵))
9190fveq2d 6848 . . . . . . . . . . 11 (𝜑 → (0g𝐹) = (0g‘(Scalar‘𝐵)))
92 fedgmul.2 . . . . . . . . . . . 12 (𝜑𝐹 ∈ DivRing)
9330, 92, 14drgext0g 33773 . . . . . . . . . . 11 (𝜑 → (0g𝐹) = (0g𝐶))
9491, 93eqtr3d 2774 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) = (0g𝐶))
9594adantr 480 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (0g‘(Scalar‘𝐵)) = (0g𝐶))
9682, 84, 953eqtr3d 2780 . . . . . . . 8 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶))
97 fedgmullem1.2 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)))
98 breq1 5103 . . . . . . . . . . . . 13 (𝑔 = (𝐺𝑗) → (𝑔 finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶))))
99 fveq1 6843 . . . . . . . . . . . . . . . . 17 (𝑔 = (𝐺𝑗) → (𝑔𝑖) = ((𝐺𝑗)‘𝑖))
10099oveq1d 7385 . . . . . . . . . . . . . . . 16 (𝑔 = (𝐺𝑗) → ((𝑔𝑖)( ·𝑠𝐶)𝑖) = (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))
101100mpteq2dv 5194 . . . . . . . . . . . . . . 15 (𝑔 = (𝐺𝑗) → (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))
102101oveq2d 7386 . . . . . . . . . . . . . 14 (𝑔 = (𝐺𝑗) → (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
103102eqeq1d 2739 . . . . . . . . . . . . 13 (𝑔 = (𝐺𝑗) → ((𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶) ↔ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)))
10498, 103anbi12d 633 . . . . . . . . . . . 12 (𝑔 = (𝐺𝑗) → ((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) ↔ ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶))))
105 eqeq1 2741 . . . . . . . . . . . 12 (𝑔 = (𝐺𝑗) → (𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))}) ↔ (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
106104, 105imbi12d 344 . . . . . . . . . . 11 (𝑔 = (𝐺𝑗) → (((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})) ↔ (((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))))
107 fedgmul.3 . . . . . . . . . . . . . . . 16 (𝜑𝐾 ∈ DivRing)
10829, 107eqeltrd 2837 . . . . . . . . . . . . . . 15 (𝜑 → (𝐹s 𝑉) ∈ DivRing)
109 eqid 2737 . . . . . . . . . . . . . . . 16 (𝐹s 𝑉) = (𝐹s 𝑉)
11030, 109sralvec 33768 . . . . . . . . . . . . . . 15 ((𝐹 ∈ DivRing ∧ (𝐹s 𝑉) ∈ DivRing ∧ 𝑉 ∈ (SubRing‘𝐹)) → 𝐶 ∈ LVec)
11192, 108, 14, 110syl3anc 1374 . . . . . . . . . . . . . 14 (𝜑𝐶 ∈ LVec)
112 lveclmod 21075 . . . . . . . . . . . . . 14 (𝐶 ∈ LVec → 𝐶 ∈ LMod)
113111, 112syl 17 . . . . . . . . . . . . 13 (𝜑𝐶 ∈ LMod)
114113adantr 480 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝐶 ∈ LMod)
115 eqid 2737 . . . . . . . . . . . . . . 15 (Base‘𝐶) = (Base‘𝐶)
116 eqid 2737 . . . . . . . . . . . . . . 15 (LBasis‘𝐶) = (LBasis‘𝐶)
117115, 116lbsss 21046 . . . . . . . . . . . . . 14 (𝑋 ∈ (LBasis‘𝐶) → 𝑋 ⊆ (Base‘𝐶))
11847, 117syl 17 . . . . . . . . . . . . 13 (𝜑𝑋 ⊆ (Base‘𝐶))
119118adantr 480 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ⊆ (Base‘𝐶))
120 eqid 2737 . . . . . . . . . . . . . . . 16 (LSpan‘𝐶) = (LSpan‘𝐶)
121115, 116, 120islbs4 21804 . . . . . . . . . . . . . . 15 (𝑋 ∈ (LBasis‘𝐶) ↔ (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
12247, 121sylib 218 . . . . . . . . . . . . . 14 (𝜑 → (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
123122simpld 494 . . . . . . . . . . . . 13 (𝜑𝑋 ∈ (LIndS‘𝐶))
124123adantr 480 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ∈ (LIndS‘𝐶))
125 eqid 2737 . . . . . . . . . . . . . 14 (Base‘(Scalar‘𝐶)) = (Base‘(Scalar‘𝐶))
126 eqid 2737 . . . . . . . . . . . . . 14 (Scalar‘𝐶) = (Scalar‘𝐶)
127 eqid 2737 . . . . . . . . . . . . . 14 ( ·𝑠𝐶) = ( ·𝑠𝐶)
128 eqid 2737 . . . . . . . . . . . . . 14 (0g𝐶) = (0g𝐶)
129 eqid 2737 . . . . . . . . . . . . . 14 (0g‘(Scalar‘𝐶)) = (0g‘(Scalar‘𝐶))
130115, 125, 126, 127, 128, 129islinds5 33466 . . . . . . . . . . . . 13 ((𝐶 ∈ LMod ∧ 𝑋 ⊆ (Base‘𝐶)) → (𝑋 ∈ (LIndS‘𝐶) ↔ ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))}))))
131130biimpa 476 . . . . . . . . . . . 12 (((𝐶 ∈ LMod ∧ 𝑋 ⊆ (Base‘𝐶)) ∧ 𝑋 ∈ (LIndS‘𝐶)) → ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})))
132114, 119, 124, 131syl21anc 838 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})))
133106, 132, 55rspcdva 3579 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
13497, 133mpand 696 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
135134imp 406 . . . . . . . 8 (((𝜑𝑗𝑌) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
13676, 78, 96, 135syl21anc 838 . . . . . . 7 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
1371, 136suppss 8148 . . . . . 6 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
13875, 137ssfid 9183 . . . . 5 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin)
139 suppssdm 8131 . . . . . . . . . 10 (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ dom 𝐺
140139, 1fssdm 6691 . . . . . . . . 9 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ 𝑌)
141140sselda 3935 . . . . . . . 8 ((𝜑𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → 𝑤𝑌)
142 eleq1w 2820 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝑗𝑌𝑤𝑌))
143142anbi2d 631 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝜑𝑗𝑌) ↔ (𝜑𝑤𝑌)))
144 fveq2 6844 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝐺𝑗) = (𝐺𝑤))
145144breq1d 5110 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶))))
146143, 145imbi12d 344 . . . . . . . . . 10 (𝑗 = 𝑤 → (((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶))) ↔ ((𝜑𝑤𝑌) → (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶)))))
147146, 97chvarvv 1991 . . . . . . . . 9 ((𝜑𝑤𝑌) → (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶)))
148147fsuppimpd 9286 . . . . . . . 8 ((𝜑𝑤𝑌) → ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
149141, 148syldan 592 . . . . . . 7 ((𝜑𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
150149ralrimiva 3130 . . . . . 6 (𝜑 → ∀𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
151 iunfi 9257 . . . . . 6 (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin ∧ ∀𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin) → 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
152138, 150, 151syl2anc 585 . . . . 5 (𝜑 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
153 xpfi 9234 . . . . 5 (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin ∧ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin) → ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin)
154138, 152, 153syl2anc 585 . . . 4 (𝜑 → ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin)
155 fveq2 6844 . . . . . . . . . 10 (𝑣 = 𝑗 → (𝐺𝑣) = (𝐺𝑗))
156155fveq1d 6846 . . . . . . . . 9 (𝑣 = 𝑗 → ((𝐺𝑣)‘𝑢) = ((𝐺𝑗)‘𝑢))
157156mpteq2dv 5194 . . . . . . . 8 (𝑣 = 𝑗 → (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)) = (𝑢𝑋 ↦ ((𝐺𝑗)‘𝑢)))
158 fveq2 6844 . . . . . . . . 9 (𝑢 = 𝑖 → ((𝐺𝑗)‘𝑢) = ((𝐺𝑗)‘𝑖))
159158cbvmptv 5204 . . . . . . . 8 (𝑢𝑋 ↦ ((𝐺𝑗)‘𝑢)) = (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖))
160157, 159eqtrdi 2788 . . . . . . 7 (𝑣 = 𝑗 → (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)) = (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖)))
161160cbvmptv 5204 . . . . . 6 (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) = (𝑗𝑌 ↦ (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖)))
162 fvexd 6859 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) ∈ V)
163 fvexd 6859 . . . . . 6 ((𝜑 ∧ (𝑗𝑌𝑖𝑋)) → ((𝐺𝑗)‘𝑖) ∈ V)
16442, 161, 46, 47, 162, 163suppovss 32777 . . . . 5 (𝜑 → (𝐻 supp (0g‘(Scalar‘𝐶))) ⊆ (((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶)))))
16510, 71subrg0 20529 . . . . . . . 8 (𝑉 ∈ (SubRing‘𝐸) → (0g𝐸) = (0g𝐾))
16619, 165syl 17 . . . . . . 7 (𝜑 → (0g𝐸) = (0g𝐾))
16736fveq2d 6848 . . . . . . 7 (𝜑 → (0g𝐾) = (0g‘(Scalar‘𝐶)))
168166, 167eqtr2d 2773 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) = (0g𝐸))
169168oveq2d 7386 . . . . 5 (𝜑 → (𝐻 supp (0g‘(Scalar‘𝐶))) = (𝐻 supp (0g𝐸)))
1701feqmptd 6912 . . . . . . . 8 (𝜑𝐺 = (𝑣𝑌 ↦ (𝐺𝑣)))
171 eleq1w 2820 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝑗𝑌𝑣𝑌))
172171anbi2d 631 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝜑𝑗𝑌) ↔ (𝜑𝑣𝑌)))
173 fveq2 6844 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝐺𝑗) = (𝐺𝑣))
174173feq1d 6654 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝐺𝑗):𝑋⟶(Base‘𝐸) ↔ (𝐺𝑣):𝑋⟶(Base‘𝐸)))
175172, 174imbi12d 344 . . . . . . . . . . 11 (𝑗 = 𝑣 → (((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘𝐸)) ↔ ((𝜑𝑣𝑌) → (𝐺𝑣):𝑋⟶(Base‘𝐸))))
17610, 20ressbas2 17179 . . . . . . . . . . . . . . . 16 (𝑉 ⊆ (Base‘𝐸) → 𝑉 = (Base‘𝐾))
17722, 176syl 17 . . . . . . . . . . . . . . 15 (𝜑𝑉 = (Base‘𝐾))
17836fveq2d 6848 . . . . . . . . . . . . . . 15 (𝜑 → (Base‘𝐾) = (Base‘(Scalar‘𝐶)))
179177, 178eqtrd 2772 . . . . . . . . . . . . . 14 (𝜑𝑉 = (Base‘(Scalar‘𝐶)))
180179, 22eqsstrrd 3971 . . . . . . . . . . . . 13 (𝜑 → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
181180adantr 480 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
18256, 181fssd 6689 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘𝐸))
183175, 182chvarvv 1991 . . . . . . . . . 10 ((𝜑𝑣𝑌) → (𝐺𝑣):𝑋⟶(Base‘𝐸))
184183feqmptd 6912 . . . . . . . . 9 ((𝜑𝑣𝑌) → (𝐺𝑣) = (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))
185184mpteq2dva 5193 . . . . . . . 8 (𝜑 → (𝑣𝑌 ↦ (𝐺𝑣)) = (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))))
186170, 185eqtr2d 2773 . . . . . . 7 (𝜑 → (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) = 𝐺)
187186oveq1d 7385 . . . . . 6 (𝜑 → ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) = (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})))
188186fveq1d 6846 . . . . . . . 8 (𝜑 → ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) = (𝐺𝑤))
189188oveq1d 7385 . . . . . . 7 (𝜑 → (((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶))) = ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))))
190187, 189iuneq12d 4978 . . . . . 6 (𝜑 𝑤 ∈ ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶))) = 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))))
191187, 190xpeq12d 5665 . . . . 5 (𝜑 → (((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶)))) = ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))))
192164, 169, 1913sstr3d 3990 . . . 4 (𝜑 → (𝐻 supp (0g𝐸)) ⊆ ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))))
193 suppssfifsupp 9297 . . . 4 (((𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)) ∧ Fun 𝐻 ∧ (0g𝐸) ∈ (Base‘𝐸)) ∧ (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin ∧ (𝐻 supp (0g𝐸)) ⊆ ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))))) → 𝐻 finSupp (0g𝐸))
19452, 66, 73, 154, 192, 193syl32anc 1381 . . 3 (𝜑𝐻 finSupp (0g𝐸))
19537fveq2d 6848 . . . 4 (𝜑 → (0g‘(Scalar‘𝐴)) = (0g‘(Scalar‘𝐶)))
196195, 168eqtr2d 2773 . . 3 (𝜑 → (0g𝐸) = (0g‘(Scalar‘𝐴)))
197194, 196breqtrd 5126 . 2 (𝜑𝐻 finSupp (0g‘(Scalar‘𝐴)))
198 fedgmullem1.z . . 3 (𝜑𝑍 = (𝐵 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
19985, 67, 13, 15, 92, 46drgextgsum 33778 . . 3 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐵 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
20047adantr 480 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ∈ (LBasis‘𝐶))
20113adantr 480 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → 𝑈 ∈ (SubRing‘𝐸))
202 subrgsubg 20527 . . . . . . . . . . . . 13 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ∈ (SubGrp‘𝐸))
203 subgsubm 19095 . . . . . . . . . . . . 13 (𝑈 ∈ (SubGrp‘𝐸) → 𝑈 ∈ (SubMnd‘𝐸))
204201, 202, 2033syl 18 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑈 ∈ (SubMnd‘𝐸))
205113ad2antrr 727 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝐶 ∈ LMod)
20656ffvelcdmda 7040 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)))
207118ad2antrr 727 . . . . . . . . . . . . . . . 16 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑋 ⊆ (Base‘𝐶))
208207, 61sseldd 3936 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖 ∈ (Base‘𝐶))
209115, 126, 127, 125lmodvscl 20846 . . . . . . . . . . . . . . 15 ((𝐶 ∈ LMod ∧ ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)) ∧ 𝑖 ∈ (Base‘𝐶)) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ (Base‘𝐶))
210205, 206, 208, 209syl3anc 1374 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ (Base‘𝐶))
21115, 20ressbas2 17179 . . . . . . . . . . . . . . . . 17 (𝑈 ⊆ (Base‘𝐸) → 𝑈 = (Base‘𝐹))
21288, 211syl 17 . . . . . . . . . . . . . . . 16 (𝜑𝑈 = (Base‘𝐹))
21331, 34srabase 21146 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐹) = (Base‘𝐶))
214212, 213eqtrd 2772 . . . . . . . . . . . . . . 15 (𝜑𝑈 = (Base‘𝐶))
215214ad2antrr 727 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑈 = (Base‘𝐶))
216210, 215eleqtrrd 2840 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ 𝑈)
217216fmpttd 7071 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)):𝑋𝑈)
218200, 204, 217, 15gsumsubm 18774 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
219 eqid 2737 . . . . . . . . . . . . . . . . . 18 (.r𝐸) = (.r𝐸)
22015, 219ressmulr 17241 . . . . . . . . . . . . . . . . 17 (𝑈 ∈ (SubRing‘𝐸) → (.r𝐸) = (.r𝐹))
22113, 220syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → (.r𝐸) = (.r𝐹))
22231, 34sravsca 21150 . . . . . . . . . . . . . . . 16 (𝜑 → (.r𝐹) = ( ·𝑠𝐶))
223221, 222eqtr2d 2773 . . . . . . . . . . . . . . 15 (𝜑 → ( ·𝑠𝐶) = (.r𝐸))
224223ad2antrr 727 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ( ·𝑠𝐶) = (.r𝐸))
225224oveqd 7387 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) = (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))
226225mpteq2dva 5193 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))
227226oveq2d 7386 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))))
22830, 92, 14, 109, 108, 47drgextgsum 33778 . . . . . . . . . . . 12 (𝜑 → (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
229228adantr 480 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
230218, 227, 2293eqtr3d 2780 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
231230oveq1d 7385 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗) = ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))(.r𝐸)𝑗))
23269ad2antrr 727 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝐸 ∈ Ring)
233180ad2antrr 727 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
234233, 206sseldd 3936 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘𝐸))
235214, 88eqsstrrd 3971 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐶) ⊆ (Base‘𝐸))
236118, 235sstrd 3946 . . . . . . . . . . . . . . 15 (𝜑𝑋 ⊆ (Base‘𝐸))
237236ad2antrr 727 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑋 ⊆ (Base‘𝐸))
238237, 61sseldd 3936 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖 ∈ (Base‘𝐸))
239 eqid 2737 . . . . . . . . . . . . . . . . . 18 (Base‘𝐵) = (Base‘𝐵)
240 eqid 2737 . . . . . . . . . . . . . . . . . 18 (LBasis‘𝐵) = (LBasis‘𝐵)
241239, 240lbsss 21046 . . . . . . . . . . . . . . . . 17 (𝑌 ∈ (LBasis‘𝐵) → 𝑌 ⊆ (Base‘𝐵))
24246, 241syl 17 . . . . . . . . . . . . . . . 16 (𝜑𝑌 ⊆ (Base‘𝐵))
24386, 88srabase 21146 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐸) = (Base‘𝐵))
244242, 243sseqtrrd 3973 . . . . . . . . . . . . . . 15 (𝜑𝑌 ⊆ (Base‘𝐸))
245244ad2antrr 727 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑌 ⊆ (Base‘𝐸))
246 simplr 769 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑗𝑌)
247245, 246sseldd 3936 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑗 ∈ (Base‘𝐸))
24820, 219ringass 20205 . . . . . . . . . . . . 13 ((𝐸 ∈ Ring ∧ (((𝐺𝑗)‘𝑖) ∈ (Base‘𝐸) ∧ 𝑖 ∈ (Base‘𝐸) ∧ 𝑗 ∈ (Base‘𝐸))) → ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
249232, 234, 238, 247, 248syl13anc 1375 . . . . . . . . . . . 12 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
250249mpteq2dva 5193 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))))
251250oveq2d 7386 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗))) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))))
25269adantr 480 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝐸 ∈ Ring)
253242adantr 480 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → 𝑌 ⊆ (Base‘𝐵))
254243adantr 480 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → (Base‘𝐸) = (Base‘𝐵))
255253, 254sseqtrrd 3973 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑌 ⊆ (Base‘𝐸))
256 simpr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑗𝑌)
257255, 256sseldd 3936 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝑗 ∈ (Base‘𝐸))
25820, 219ringcl 20202 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ ((𝐺𝑗)‘𝑖) ∈ (Base‘𝐸) ∧ 𝑖 ∈ (Base‘𝐸)) → (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖) ∈ (Base‘𝐸))
259232, 234, 238, 258syl3anc 1374 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖) ∈ (Base‘𝐸))
260168breq2d 5112 . . . . . . . . . . . . . 14 (𝜑 → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g𝐸)))
261260adantr 480 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g𝐸)))
26297, 261mpbid 232 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g𝐸))
26320, 252, 200, 238, 182, 262rmfsupp2 33338 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)) finSupp (0g𝐸))
26420, 71, 219, 252, 200, 257, 259, 263gsummulc1 20268 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗))) = ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗))
265251, 264eqtr3d 2774 . . . . . . . . 9 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))) = ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗))
26683oveq1d 7385 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))(.r𝐸)𝑗))
267231, 265, 2663eqtr4rd 2783 . . . . . . . 8 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))))
26886, 88sravsca 21150 . . . . . . . . . 10 (𝜑 → (.r𝐸) = ( ·𝑠𝐵))
269268adantr 480 . . . . . . . . 9 ((𝜑𝑗𝑌) → (.r𝐸) = ( ·𝑠𝐵))
270269oveqd 7387 . . . . . . . 8 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = ((𝐿𝑗)( ·𝑠𝐵)𝑗))
271 fvexd 6859 . . . . . . . . . . . . . 14 ((𝜑𝑗𝑌𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ V)
272 ovexd 7405 . . . . . . . . . . . . . 14 ((𝜑𝑗𝑌𝑖𝑋) → (𝑖(.r𝐸)𝑗) ∈ V)
27342a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐻 = (𝑗𝑌, 𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖)))
274 fedgmullem.d . . . . . . . . . . . . . . 15 𝐷 = (𝑗𝑌, 𝑖𝑋 ↦ (𝑖(.r𝐸)𝑗))
275274a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐷 = (𝑗𝑌, 𝑖𝑋 ↦ (𝑖(.r𝐸)𝑗)))
27646, 47, 271, 272, 273, 275offval22 8042 . . . . . . . . . . . . 13 (𝜑 → (𝐻f (.r𝐸)𝐷) = (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))))
277276oveqd 7387 . . . . . . . . . . . 12 (𝜑 → (𝑗(𝐻f (.r𝐸)𝐷)𝑖) = (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖))
278277ad2antrr 727 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑗(𝐻f (.r𝐸)𝐷)𝑖) = (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖))
279 ovexd 7405 . . . . . . . . . . . 12 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)) ∈ V)
280 eqid 2737 . . . . . . . . . . . . 13 (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))) = (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
281280ovmpt4g 7517 . . . . . . . . . . . 12 ((𝑗𝑌𝑖𝑋 ∧ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)) ∈ V) → (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
282246, 61, 279, 281syl3anc 1374 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
283278, 282eqtr2d 2773 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)) = (𝑗(𝐻f (.r𝐸)𝐷)𝑖))
284283mpteq2dva 5193 . . . . . . . . 9 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))) = (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖)))
285284oveq2d 7386 . . . . . . . 8 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))) = (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))
286267, 270, 2853eqtr3d 2780 . . . . . . 7 ((𝜑𝑗𝑌) → ((𝐿𝑗)( ·𝑠𝐵)𝑗) = (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))
287286mpteq2dva 5193 . . . . . 6 (𝜑 → (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗)) = (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖)))))
288287oveq2d 7386 . . . . 5 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐸 Σg (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))))
289 ringcmn 20234 . . . . . . 7 (𝐸 ∈ Ring → 𝐸 ∈ CMnd)
29069, 289syl 17 . . . . . 6 (𝜑𝐸 ∈ CMnd)
29169adantr 480 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝐸 ∈ Ring)
29238, 180eqsstrd 3970 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
293292adantr 480 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
294 simprl 771 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘(Scalar‘𝐴)))
295293, 294sseldd 3936 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘𝐸))
296 simprr 773 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐴))
29712, 22srabase 21146 . . . . . . . . . 10 (𝜑 → (Base‘𝐸) = (Base‘𝐴))
298297adantr 480 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘𝐸) = (Base‘𝐴))
299296, 298eleqtrrd 2840 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐸))
30020, 219ringcl 20202 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑙 ∈ (Base‘𝐸) ∧ 𝑘 ∈ (Base‘𝐸)) → (𝑙(.r𝐸)𝑘) ∈ (Base‘𝐸))
301291, 295, 299, 300syl3anc 1374 . . . . . . 7 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (𝑙(.r𝐸)𝑘) ∈ (Base‘𝐸))
30220, 219ringcl 20202 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ 𝑖 ∈ (Base‘𝐸) ∧ 𝑗 ∈ (Base‘𝐸)) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐸))
303232, 238, 247, 302syl3anc 1374 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐸))
304297ad2antrr 727 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (Base‘𝐸) = (Base‘𝐴))
305303, 304eleqtrd 2839 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
306305anasss 466 . . . . . . . . 9 ((𝜑 ∧ (𝑗𝑌𝑖𝑋)) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
307306ralrimivva 3181 . . . . . . . 8 (𝜑 → ∀𝑗𝑌𝑖𝑋 (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
308274fmpo 8024 . . . . . . . 8 (∀𝑗𝑌𝑖𝑋 (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴) ↔ 𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
309307, 308sylib 218 . . . . . . 7 (𝜑𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
310 inidm 4181 . . . . . . 7 ((𝑌 × 𝑋) ∩ (𝑌 × 𝑋)) = (𝑌 × 𝑋)
311301, 65, 309, 48, 48, 310off 7652 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷):(𝑌 × 𝑋)⟶(Base‘𝐸))
31269adantr 480 . . . . . . . 8 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝐸 ∈ Ring)
313 simpr 484 . . . . . . . . 9 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐴))
314297adantr 480 . . . . . . . . 9 ((𝜑𝑢 ∈ (Base‘𝐴)) → (Base‘𝐸) = (Base‘𝐴))
315313, 314eleqtrrd 2840 . . . . . . . 8 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐸))
31620, 219, 71ringlz 20245 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑢 ∈ (Base‘𝐸)) → ((0g𝐸)(.r𝐸)𝑢) = (0g𝐸))
317312, 315, 316syl2anc 585 . . . . . . 7 ((𝜑𝑢 ∈ (Base‘𝐴)) → ((0g𝐸)(.r𝐸)𝑢) = (0g𝐸))
31848, 73, 73, 65, 309, 194, 317offinsupp1 32822 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷) finSupp (0g𝐸))
31920, 71, 290, 46, 47, 311, 318gsumxp 19922 . . . . 5 (𝜑 → (𝐸 Σg (𝐻f (.r𝐸)𝐷)) = (𝐸 Σg (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))))
32012, 22sravsca 21150 . . . . . . . 8 (𝜑 → (.r𝐸) = ( ·𝑠𝐴))
321320ofeqd 7636 . . . . . . 7 (𝜑 → ∘f (.r𝐸) = ∘f ( ·𝑠𝐴))
322321oveqd 7387 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷) = (𝐻f ( ·𝑠𝐴)𝐷))
323322oveq2d 7386 . . . . 5 (𝜑 → (𝐸 Σg (𝐻f (.r𝐸)𝐷)) = (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
324288, 319, 3233eqtr2rd 2779 . . . 4 (𝜑 → (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)) = (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
325 ovexd 7405 . . . . 5 (𝜑 → (𝐻f ( ·𝑠𝐴)𝐷) ∈ V)
326 fedgmullem1.a . . . . . 6 (𝜑𝑍 ∈ (Base‘𝐴))
327326elfvexd 6880 . . . . 5 (𝜑𝐴 ∈ V)
32811, 325, 67, 327, 22gsumsra 33147 . . . 4 (𝜑 → (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)) = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
329324, 328eqtr3d 2774 . . 3 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
330198, 199, 3293eqtr2d 2778 . 2 (𝜑𝑍 = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
331197, 330jca 511 1 (𝜑 → (𝐻 finSupp (0g‘(Scalar‘𝐴)) ∧ 𝑍 = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 206  wa 395  w3a 1087   = wceq 1542  wcel 2114  wral 3052  Vcvv 3442  cdif 3900  wss 3903  {csn 4582   ciun 4948   class class class wbr 5100  cmpt 5181   × cxp 5632  Fun wfun 6496  wf 6498  cfv 6502  (class class class)co 7370  cmpo 7372  f cof 7632   supp csupp 8114  m cmap 8777  Fincfn 8897   finSupp cfsupp 9278  Basecbs 17150  s cress 17171  .rcmulr 17192  Scalarcsca 17194   ·𝑠 cvsca 17195  0gc0g 17373   Σg cgsu 17374  SubMndcsubmnd 18721  Grpcgrp 18880  SubGrpcsubg 19067  CMndccmn 19726  Ringcrg 20185  SubRingcsubrg 20519  DivRingcdr 20679  LModclmod 20828  LSpanclspn 20939  LBasisclbs 21043  LVecclvec 21071  subringAlg csra 21140  LIndSclinds 21777
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5226  ax-sep 5245  ax-nul 5255  ax-pow 5314  ax-pr 5381  ax-un 7692  ax-cnex 11096  ax-resscn 11097  ax-1cn 11098  ax-icn 11099  ax-addcl 11100  ax-addrcl 11101  ax-mulcl 11102  ax-mulrcl 11103  ax-mulcom 11104  ax-addass 11105  ax-mulass 11106  ax-distr 11107  ax-i2m1 11108  ax-1ne0 11109  ax-1rid 11110  ax-rnegex 11111  ax-rrecex 11112  ax-cnre 11113  ax-pre-lttri 11114  ax-pre-lttrn 11115  ax-pre-ltadd 11116  ax-pre-mulgt0 11117
This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-rmo 3352  df-reu 3353  df-rab 3402  df-v 3444  df-sbc 3743  df-csb 3852  df-dif 3906  df-un 3908  df-in 3910  df-ss 3920  df-pss 3923  df-nul 4288  df-if 4482  df-pw 4558  df-sn 4583  df-pr 4585  df-tp 4587  df-op 4589  df-uni 4866  df-int 4905  df-iun 4950  df-iin 4951  df-br 5101  df-opab 5163  df-mpt 5182  df-tr 5208  df-id 5529  df-eprel 5534  df-po 5542  df-so 5543  df-fr 5587  df-se 5588  df-we 5589  df-xp 5640  df-rel 5641  df-cnv 5642  df-co 5643  df-dm 5644  df-rn 5645  df-res 5646  df-ima 5647  df-pred 6269  df-ord 6330  df-on 6331  df-lim 6332  df-suc 6333  df-iota 6458  df-fun 6504  df-fn 6505  df-f 6506  df-f1 6507  df-fo 6508  df-f1o 6509  df-fv 6510  df-isom 6511  df-riota 7327  df-ov 7373  df-oprab 7374  df-mpo 7375  df-of 7634  df-om 7821  df-1st 7945  df-2nd 7946  df-supp 8115  df-frecs 8235  df-wrecs 8266  df-recs 8315  df-rdg 8353  df-1o 8409  df-2o 8410  df-er 8647  df-map 8779  df-ixp 8850  df-en 8898  df-dom 8899  df-sdom 8900  df-fin 8901  df-fsupp 9279  df-sup 9359  df-oi 9429  df-card 9865  df-pnf 11182  df-mnf 11183  df-xr 11184  df-ltxr 11185  df-le 11186  df-sub 11380  df-neg 11381  df-nn 12160  df-2 12222  df-3 12223  df-4 12224  df-5 12225  df-6 12226  df-7 12227  df-8 12228  df-9 12229  df-n0 12416  df-z 12503  df-dec 12622  df-uz 12766  df-fz 13438  df-fzo 13585  df-seq 13939  df-hash 14268  df-struct 17088  df-sets 17105  df-slot 17123  df-ndx 17135  df-base 17151  df-ress 17172  df-plusg 17204  df-mulr 17205  df-sca 17207  df-vsca 17208  df-ip 17209  df-tset 17210  df-ple 17211  df-ds 17213  df-hom 17215  df-cco 17216  df-0g 17375  df-gsum 17376  df-prds 17381  df-pws 17383  df-mre 17519  df-mrc 17520  df-acs 17522  df-mgm 18579  df-sgrp 18658  df-mnd 18674  df-mhm 18722  df-submnd 18723  df-grp 18883  df-minusg 18884  df-sbg 18885  df-mulg 19015  df-subg 19070  df-ghm 19159  df-cntz 19263  df-cmn 19728  df-abl 19729  df-mgp 20093  df-rng 20105  df-ur 20134  df-ring 20187  df-nzr 20463  df-subrg 20520  df-drng 20681  df-lmod 20830  df-lss 20900  df-lsp 20940  df-lmhm 20991  df-lbs 21044  df-lvec 21072  df-sra 21142  df-rgmod 21143  df-dsmm 21704  df-frlm 21719  df-uvc 21755  df-lindf 21778  df-linds 21779
This theorem is referenced by:  fedgmul  33815
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