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Theorem fedgmullem1 34261
Description: Lemma for fedgmul 34263. (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 = (𝐸 ↾s 𝑈)
fedgmul.k 𝐾 = (𝐸 ↾s 𝑉)
fedgmul.1 (𝜑 → 𝐸 ∈ DivRing)
fedgmul.2 (𝜑 → 𝐹 ∈ DivRing)
fedgmul.3 (𝜑 → 𝐾 ∈ DivRing)
fedgmul.4 (𝜑 → 𝑈 ∈ (SubRing‘𝐸))
fedgmul.5 (𝜑 → 𝑉 ∈ (SubRing‘𝐹))
fedgmullem.d 𝐷 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (𝑖(.r‘𝐸)𝑗))
fedgmullem.h 𝐻 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖))
fedgmullem.x (𝜑 → 𝑋 ∈ (LBasis‘𝐶))
fedgmullem.y (𝜑 → 𝑌 ∈ (LBasis‘𝐵))
fedgmullem1.a (𝜑 → 𝑍 ∈ (Base‘𝐴))
fedgmullem1.l (𝜑 → 𝐿:𝑌⟶(Base‘(Scalar‘𝐵)))
fedgmullem1.1 (𝜑 → 𝐿 finSupp (0g‘(Scalar‘𝐵)))
fedgmullem1.z (𝜑 → 𝑍 = (𝐵 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))))
fedgmullem1.g (𝜑 → 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
fedgmullem1.2 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)))
fedgmullem1.3 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐿‘𝑗) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
Assertion
Ref Expression
fedgmullem1 (𝜑 → (𝐻 finSupp (0g‘(Scalar‘𝐴)) ∧ 𝑍 = (𝐴 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)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 (𝜑 → 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
2 simpllr 788 . . . . . . . . . . . . 13 ((((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
3 simplr 781 . . . . . . . . . . . . 13 ((((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑗 ∈ 𝑌)
42, 3ffvelcdmd 7085 . . . . . . . . . . . 12 ((((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝐺‘𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5 elmapi 8869 . . . . . . . . . . . 12 ((𝐺‘𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
64, 5syl 18 . . . . . . . . . . 11 ((((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
76anasss 472 . . . . . . . . . 10 (((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
8 simprr 785 . . . . . . . . . 10 (((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → 𝑖 ∈ 𝑋)
97, 8ffvelcdmd 7085 . . . . . . . . 9 (((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)))
10 fedgmul.k . . . . . . . . . . . . 13 𝐾 = (𝐸 ↾s 𝑉)
11 fedgmul.a . . . . . . . . . . . . . . 15 𝐴 = ((subringAlg ‘𝐸)‘𝑉)
1211a1i 11 . . . . . . . . . . . . . 14 (𝜑 → 𝐴 = ((subringAlg ‘𝐸)‘𝑉))
13 fedgmul.4 . . . . . . . . . . . . . . . . 17 (𝜑 → 𝑈 ∈ (SubRing‘𝐸))
14 fedgmul.5 . . . . . . . . . . . . . . . . 17 (𝜑 → 𝑉 ∈ (SubRing‘𝐹))
15 fedgmul.f . . . . . . . . . . . . . . . . . . 19 𝐹 = (𝐸 ↾s 𝑈)
1615subsubrg 20850 . . . . . . . . . . . . . . . . . 18 (𝑈 ∈ (SubRing‘𝐸) → (𝑉 ∈ (SubRing‘𝐹) ↔ (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉 ⊆ 𝑈)))
1716biimpa 482 . . . . . . . . . . . . . . . . 17 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉 ∈ (SubRing‘𝐹)) → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉 ⊆ 𝑈))
1813, 14, 17syl2anc 596 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉 ⊆ 𝑈))
1918simpld 500 . . . . . . . . . . . . . . 15 (𝜑 → 𝑉 ∈ (SubRing‘𝐸))
20 eqid 2761 . . . . . . . . . . . . . . . 16 (Base‘𝐸) = (Base‘𝐸)
2120subrgss 20824 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐸) → 𝑉 ⊆ (Base‘𝐸))
2219, 21syl 18 . . . . . . . . . . . . . 14 (𝜑 → 𝑉 ⊆ (Base‘𝐸))
2312, 22srasca 21455 . . . . . . . . . . . . 13 (𝜑 → (𝐸 ↾s 𝑉) = (Scalar‘𝐴))
2410, 23eqtrid 2808 . . . . . . . . . . . 12 (𝜑 → 𝐾 = (Scalar‘𝐴))
2518simprd 501 . . . . . . . . . . . . . . 15 (𝜑 → 𝑉 ⊆ 𝑈)
26 ressabs 17426 . . . . . . . . . . . . . . 15 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉 ⊆ 𝑈) → ((𝐸 ↾s 𝑈) ↾s 𝑉) = (𝐸 ↾s 𝑉))
2713, 25, 26syl2anc 596 . . . . . . . . . . . . . 14 (𝜑 → ((𝐸 ↾s 𝑈) ↾s 𝑉) = (𝐸 ↾s 𝑉))
2815oveq1i 7430 . . . . . . . . . . . . . 14 (𝐹 ↾s 𝑉) = ((𝐸 ↾s 𝑈) ↾s 𝑉)
2927, 28, 103eqtr4g 2821 . . . . . . . . . . . . 13 (𝜑 → (𝐹 ↾s 𝑉) = 𝐾)
30 fedgmul.c . . . . . . . . . . . . . . 15 𝐶 = ((subringAlg ‘𝐹)‘𝑉)
3130a1i 11 . . . . . . . . . . . . . 14 (𝜑 → 𝐶 = ((subringAlg ‘𝐹)‘𝑉))
32 eqid 2761 . . . . . . . . . . . . . . . 16 (Base‘𝐹) = (Base‘𝐹)
3332subrgss 20824 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐹) → 𝑉 ⊆ (Base‘𝐹))
3414, 33syl 18 . . . . . . . . . . . . . 14 (𝜑 → 𝑉 ⊆ (Base‘𝐹))
3531, 34srasca 21455 . . . . . . . . . . . . 13 (𝜑 → (𝐹 ↾s 𝑉) = (Scalar‘𝐶))
3629, 35eqtr3d 2798 . . . . . . . . . . . 12 (𝜑 → 𝐾 = (Scalar‘𝐶))
3724, 36eqtr3d 2798 . . . . . . . . . . 11 (𝜑 → (Scalar‘𝐴) = (Scalar‘𝐶))
3837fveq2d 6889 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
3938ad2antrr 739 . . . . . . . . 9 (((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
409, 39eleqtrrd 2864 . . . . . . . 8 (((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
4140ralrimivva 3206 . . . . . . 7 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → ∀𝑗 ∈ 𝑌 ∀𝑖 ∈ 𝑋 ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
42 fedgmullem.h . . . . . . . 8 𝐻 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖))
4342fmpo 8079 . . . . . . 7 (∀𝑗 ∈ 𝑌 ∀𝑖 ∈ 𝑋 ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
4441, 43sylib 221 . . . . . 6 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
45 fvexd 6900 . . . . . . 7 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (Base‘(Scalar‘𝐴)) ∈ V)
46 fedgmullem.y . . . . . . . . 9 (𝜑 → 𝑌 ∈ (LBasis‘𝐵))
47 fedgmullem.x . . . . . . . . 9 (𝜑 → 𝑋 ∈ (LBasis‘𝐶))
4846, 47xpexd 7765 . . . . . . . 8 (𝜑 → (𝑌 × 𝑋) ∈ V)
4948adantr 486 . . . . . . 7 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝑌 × 𝑋) ∈ V)
5045, 49elmapd 8860 . . . . . 6 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴))))
5144, 50mpbird 260 . . . . 5 ((𝜑 ∧ 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
521, 51mpdan 700 . . . 4 (𝜑 → 𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
53 simpl 488 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝜑)
5453adantr 486 . . . . . . . . . 10 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝜑)
551ffvelcdmda 7084 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5655, 5syl 18 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5756adantr 486 . . . . . . . . . 10 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5838feq3d 6694 . . . . . . . . . . 11 (𝜑 → ((𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐴)) ↔ (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶))))
5958biimpar 483 . . . . . . . . . 10 ((𝜑 ∧ (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐶))) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
6054, 57, 59syl2anc 596 . . . . . . . . 9 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝐺‘𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
61 simpr 490 . . . . . . . . 9 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑖 ∈ 𝑋)
6260, 61ffvelcdmd 7085 . . . . . . . 8 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6362ralrimiva 3155 . . . . . . 7 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ∀𝑖 ∈ 𝑋 ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6463ralrimiva 3155 . . . . . 6 (𝜑 → ∀𝑗 ∈ 𝑌 ∀𝑖 ∈ 𝑋 ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6564, 43sylib 221 . . . . 5 (𝜑 → 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
6665ffund 6714 . . . 4 (𝜑 → Fun 𝐻)
67 fedgmul.1 . . . . . 6 (𝜑 → 𝐸 ∈ DivRing)
68 drngring 20987 . . . . . 6 (𝐸 ∈ DivRing → 𝐸 ∈ Ring)
6967, 68syl 18 . . . . 5 (𝜑 → 𝐸 ∈ Ring)
70 ringgrp 20464 . . . . 5 (𝐸 ∈ Ring → 𝐸 ∈ Grp)
71 eqid 2761 . . . . . 6 (0g‘𝐸) = (0g‘𝐸)
7220, 71grpidcl 19176 . . . . 5 (𝐸 ∈ Grp → (0g‘𝐸) ∈ (Base‘𝐸))
7369, 70, 723syl 19 . . . 4 (𝜑 → (0g‘𝐸) ∈ (Base‘𝐸))
74 fedgmullem1.1 . . . . . . 7 (𝜑 → 𝐿 finSupp (0g‘(Scalar‘𝐵)))
7574fsuppimpd 9361 . . . . . 6 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ∈ Fin)
76 simpl 488 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝜑)
77 simpr 490 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵)))))
7877eldifad 3911 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗 ∈ 𝑌)
79 fedgmullem1.l . . . . . . . . . 10 (𝜑 → 𝐿:𝑌⟶(Base‘(Scalar‘𝐵)))
80 ssidd 3954 . . . . . . . . . 10 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
81 fvexd 6900 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) ∈ V)
8279, 80, 46, 81suppssr 8212 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐿‘𝑗) = (0g‘(Scalar‘𝐵)))
83 fedgmullem1.3 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐿‘𝑗) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
8478, 83syldan 603 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐿‘𝑗) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
85 fedgmul.b . . . . . . . . . . . . . . 15 𝐵 = ((subringAlg ‘𝐸)‘𝑈)
8685a1i 11 . . . . . . . . . . . . . 14 (𝜑 → 𝐵 = ((subringAlg ‘𝐸)‘𝑈))
8720subrgss 20824 . . . . . . . . . . . . . . 15 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ⊆ (Base‘𝐸))
8813, 87syl 18 . . . . . . . . . . . . . 14 (𝜑 → 𝑈 ⊆ (Base‘𝐸))
8986, 88srasca 21455 . . . . . . . . . . . . 13 (𝜑 → (𝐸 ↾s 𝑈) = (Scalar‘𝐵))
9015, 89eqtrid 2808 . . . . . . . . . . . 12 (𝜑 → 𝐹 = (Scalar‘𝐵))
9190fveq2d 6889 . . . . . . . . . . 11 (𝜑 → (0g‘𝐹) = (0g‘(Scalar‘𝐵)))
92 fedgmul.2 . . . . . . . . . . . 12 (𝜑 → 𝐹 ∈ DivRing)
9330, 92, 14drgext0g 34222 . . . . . . . . . . 11 (𝜑 → (0g‘𝐹) = (0g‘𝐶))
9491, 93eqtr3d 2798 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) = (0g‘𝐶))
9594adantr 486 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (0g‘(Scalar‘𝐵)) = (0g‘𝐶))
9682, 84, 953eqtr3d 2804 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶))
97 fedgmullem1.2 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)))
98 breq1 5106 . . . . . . . . . . . . 13 (𝑔 = (𝐺‘𝑗) → (𝑔 finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶))))
99 fveq1 6884 . . . . . . . . . . . . . . . . 17 (𝑔 = (𝐺‘𝑗) → (𝑔‘𝑖) = ((𝐺‘𝑗)‘𝑖))
10099oveq1d 7435 . . . . . . . . . . . . . . . 16 (𝑔 = (𝐺‘𝑗) → ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖) = (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))
101100mpteq2dv 5199 . . . . . . . . . . . . . . 15 (𝑔 = (𝐺‘𝑗) → (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖)) = (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖)))
102101oveq2d 7436 . . . . . . . . . . . . . 14 (𝑔 = (𝐺‘𝑗) → (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
103102eqeq1d 2763 . . . . . . . . . . . . 13 (𝑔 = (𝐺‘𝑗) → ((𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶) ↔ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)))
10498, 103anbi12d 644 . . . . . . . . . . . 12 (𝑔 = (𝐺‘𝑗) → ((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) ↔ ((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶))))
105 eqeq1 2765 . . . . . . . . . . . 12 (𝑔 = (𝐺‘𝑗) → (𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))}) ↔ (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
106104, 105imbi12d 347 . . . . . . . . . . 11 (𝑔 = (𝐺‘𝑗) → (((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})) ↔ (((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))))
107 fedgmul.3 . . . . . . . . . . . . . . . 16 (𝜑 → 𝐾 ∈ DivRing)
10829, 107eqeltrd 2861 . . . . . . . . . . . . . . 15 (𝜑 → (𝐹 ↾s 𝑉) ∈ DivRing)
109 eqid 2761 . . . . . . . . . . . . . . . 16 (𝐹 ↾s 𝑉) = (𝐹 ↾s 𝑉)
11030, 109sralvec 34217 . . . . . . . . . . . . . . 15 ((𝐹 ∈ DivRing ∧ (𝐹 ↾s 𝑉) ∈ DivRing ∧ 𝑉 ∈ (SubRing‘𝐹)) → 𝐶 ∈ LVec)
11192, 108, 14, 110syl3anc 1398 . . . . . . . . . . . . . 14 (𝜑 → 𝐶 ∈ LVec)
112 lveclmod 21381 . . . . . . . . . . . . . 14 (𝐶 ∈ LVec → 𝐶 ∈ LMod)
113111, 112syl 18 . . . . . . . . . . . . 13 (𝜑 → 𝐶 ∈ LMod)
114113adantr 486 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝐶 ∈ LMod)
115 eqid 2761 . . . . . . . . . . . . . . 15 (Base‘𝐶) = (Base‘𝐶)
116 eqid 2761 . . . . . . . . . . . . . . 15 (LBasis‘𝐶) = (LBasis‘𝐶)
117115, 116lbsss 21352 . . . . . . . . . . . . . 14 (𝑋 ∈ (LBasis‘𝐶) → 𝑋 ⊆ (Base‘𝐶))
11847, 117syl 18 . . . . . . . . . . . . 13 (𝜑 → 𝑋 ⊆ (Base‘𝐶))
119118adantr 486 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑋 ⊆ (Base‘𝐶))
120 eqid 2761 . . . . . . . . . . . . . . . 16 (LSpan‘𝐶) = (LSpan‘𝐶)
121115, 116, 120islbs4 22138 . . . . . . . . . . . . . . 15 (𝑋 ∈ (LBasis‘𝐶) ↔ (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
12247, 121sylib 221 . . . . . . . . . . . . . 14 (𝜑 → (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
123122simpld 500 . . . . . . . . . . . . 13 (𝜑 → 𝑋 ∈ (LIndS‘𝐶))
124123adantr 486 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑋 ∈ (LIndS‘𝐶))
125 eqid 2761 . . . . . . . . . . . . . 14 (Base‘(Scalar‘𝐶)) = (Base‘(Scalar‘𝐶))
126 eqid 2761 . . . . . . . . . . . . . 14 (Scalar‘𝐶) = (Scalar‘𝐶)
127 eqid 2761 . . . . . . . . . . . . . 14 ( ·𝑠 ‘𝐶) = ( ·𝑠 ‘𝐶)
128 eqid 2761 . . . . . . . . . . . . . 14 (0g‘𝐶) = (0g‘𝐶)
129 eqid 2761 . . . . . . . . . . . . . 14 (0g‘(Scalar‘𝐶)) = (0g‘(Scalar‘𝐶))
130115, 125, 126, 127, 128, 129islinds5 33923 . . . . . . . . . . . . 13 ((𝐶 ∈ LMod ∧ 𝑋 ⊆ (Base‘𝐶)) → (𝑋 ∈ (LIndS‘𝐶) ↔ ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))}))))
131130biimpa 482 . . . . . . . . . . . 12 (((𝐶 ∈ LMod ∧ 𝑋 ⊆ (Base‘𝐶)) ∧ 𝑋 ∈ (LIndS‘𝐶)) → ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})))
132114, 119, 124, 131syl21anc 851 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ∀𝑔 ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋)((𝑔 finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ ((𝑔‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → 𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))})))
133106, 132, 55rspcdva 3578 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
13497, 133mpand 708 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶) → (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
135134imp 412 . . . . . . . 8 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (0g‘𝐶)) → (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
13676, 78, 96, 135syl21anc 851 . . . . . . 7 ((𝜑 ∧ 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐺‘𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
1371, 136suppss 8211 . . . . . 6 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
13875, 137ssfid 9260 . . . . 5 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin)
139 suppssdm 8194 . . . . . . . . . 10 (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ dom 𝐺
140139, 1fssdm 6729 . . . . . . . . 9 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ 𝑌)
141140sselda 3931 . . . . . . . 8 ((𝜑 ∧ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → 𝑤 ∈ 𝑌)
142 eleq1w 2844 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝑗 ∈ 𝑌 ↔ 𝑤 ∈ 𝑌))
143142anbi2d 642 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝜑 ∧ 𝑗 ∈ 𝑌) ↔ (𝜑 ∧ 𝑤 ∈ 𝑌)))
144 fveq2 6885 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝐺‘𝑗) = (𝐺‘𝑤))
145144breq1d 5113 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺‘𝑤) finSupp (0g‘(Scalar‘𝐶))))
146143, 145imbi12d 347 . . . . . . . . . 10 (𝑗 = 𝑤 → (((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶))) ↔ ((𝜑 ∧ 𝑤 ∈ 𝑌) → (𝐺‘𝑤) finSupp (0g‘(Scalar‘𝐶)))))
147146, 97chvarvv 2022 . . . . . . . . 9 ((𝜑 ∧ 𝑤 ∈ 𝑌) → (𝐺‘𝑤) finSupp (0g‘(Scalar‘𝐶)))
148147fsuppimpd 9361 . . . . . . . 8 ((𝜑 ∧ 𝑤 ∈ 𝑌) → ((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
149141, 148syldan 603 . . . . . . 7 ((𝜑 ∧ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → ((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
150149ralrimiva 3155 . . . . . 6 (𝜑 → ∀𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
151 iunfi 9332 . . . . . 6 (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin ∧ ∀𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin) → ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
152138, 150, 151syl2anc 596 . . . . 5 (𝜑 → ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
153 xpfi 9311 . . . . 5 (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin ∧ ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin) → ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin)
154138, 152, 153syl2anc 596 . . . 4 (𝜑 → ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin)
155 fveq2 6885 . . . . . . . . . 10 (𝑣 = 𝑗 → (𝐺‘𝑣) = (𝐺‘𝑗))
156155fveq1d 6887 . . . . . . . . 9 (𝑣 = 𝑗 → ((𝐺‘𝑣)‘𝑢) = ((𝐺‘𝑗)‘𝑢))
157156mpteq2dv 5199 . . . . . . . 8 (𝑣 = 𝑗 → (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)) = (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑢)))
158 fveq2 6885 . . . . . . . . 9 (𝑢 = 𝑖 → ((𝐺‘𝑗)‘𝑢) = ((𝐺‘𝑗)‘𝑖))
159158cbvmptv 5209 . . . . . . . 8 (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑢)) = (𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖))
160157, 159eqtrdi 2812 . . . . . . 7 (𝑣 = 𝑗 → (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)) = (𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖)))
161160cbvmptv 5209 . . . . . 6 (𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) = (𝑗 ∈ 𝑌 ↦ (𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖)))
162 fvexd 6900 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) ∈ V)
163 fvexd 6900 . . . . . 6 ((𝜑 ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → ((𝐺‘𝑗)‘𝑖) ∈ V)
16442, 161, 46, 47, 162, 163suppovss 33274 . . . . 5 (𝜑 → (𝐻 supp (0g‘(Scalar‘𝐶))) ⊆ (((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ ((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶)))))
16510, 71subrg0 20831 . . . . . . . 8 (𝑉 ∈ (SubRing‘𝐸) → (0g‘𝐸) = (0g‘𝐾))
16619, 165syl 18 . . . . . . 7 (𝜑 → (0g‘𝐸) = (0g‘𝐾))
16736fveq2d 6889 . . . . . . 7 (𝜑 → (0g‘𝐾) = (0g‘(Scalar‘𝐶)))
168166, 167eqtr2d 2797 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) = (0g‘𝐸))
169168oveq2d 7436 . . . . 5 (𝜑 → (𝐻 supp (0g‘(Scalar‘𝐶))) = (𝐻 supp (0g‘𝐸)))
1701feqmptd 6953 . . . . . . . 8 (𝜑 → 𝐺 = (𝑣 ∈ 𝑌 ↦ (𝐺‘𝑣)))
171 eleq1w 2844 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝑗 ∈ 𝑌 ↔ 𝑣 ∈ 𝑌))
172171anbi2d 642 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝜑 ∧ 𝑗 ∈ 𝑌) ↔ (𝜑 ∧ 𝑣 ∈ 𝑌)))
173 fveq2 6885 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝐺‘𝑗) = (𝐺‘𝑣))
174173feq1d 6691 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝐺‘𝑗):𝑋⟶(Base‘𝐸) ↔ (𝐺‘𝑣):𝑋⟶(Base‘𝐸)))
175172, 174imbi12d 347 . . . . . . . . . . 11 (𝑗 = 𝑣 → (((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗):𝑋⟶(Base‘𝐸)) ↔ ((𝜑 ∧ 𝑣 ∈ 𝑌) → (𝐺‘𝑣):𝑋⟶(Base‘𝐸))))
17610, 20ressbas2 17416 . . . . . . . . . . . . . . . 16 (𝑉 ⊆ (Base‘𝐸) → 𝑉 = (Base‘𝐾))
17722, 176syl 18 . . . . . . . . . . . . . . 15 (𝜑 → 𝑉 = (Base‘𝐾))
17836fveq2d 6889 . . . . . . . . . . . . . . 15 (𝜑 → (Base‘𝐾) = (Base‘(Scalar‘𝐶)))
179177, 178eqtrd 2796 . . . . . . . . . . . . . 14 (𝜑 → 𝑉 = (Base‘(Scalar‘𝐶)))
180179, 22eqsstrrd 3966 . . . . . . . . . . . . 13 (𝜑 → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
181180adantr 486 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
18256, 181fssd 6727 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗):𝑋⟶(Base‘𝐸))
183175, 182chvarvv 2022 . . . . . . . . . 10 ((𝜑 ∧ 𝑣 ∈ 𝑌) → (𝐺‘𝑣):𝑋⟶(Base‘𝐸))
184183feqmptd 6953 . . . . . . . . 9 ((𝜑 ∧ 𝑣 ∈ 𝑌) → (𝐺‘𝑣) = (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))
185184mpteq2dva 5198 . . . . . . . 8 (𝜑 → (𝑣 ∈ 𝑌 ↦ (𝐺‘𝑣)) = (𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))))
186170, 185eqtr2d 2797 . . . . . . 7 (𝜑 → (𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) = 𝐺)
187186oveq1d 7435 . . . . . 6 (𝜑 → ((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) = (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})))
188186fveq1d 6887 . . . . . . . 8 (𝜑 → ((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))‘𝑤) = (𝐺‘𝑤))
189188oveq1d 7435 . . . . . . 7 (𝜑 → (((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶))) = ((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))))
190187, 189iuneq12d 4980 . . . . . 6 (𝜑 → ∪ 𝑤 ∈ ((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶))) = ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶))))
191187, 190xpeq12d 5682 . . . . 5 (𝜑 → (((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ ((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))}))(((𝑣 ∈ 𝑌 ↦ (𝑢 ∈ 𝑋 ↦ ((𝐺‘𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶)))) = ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))))
192164, 169, 1913sstr3d 3985 . . . 4 (𝜑 → (𝐻 supp (0g‘𝐸)) ⊆ ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))))
193 suppssfifsupp 9372 . . . 4 (((𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)) ∧ Fun 𝐻 ∧ (0g‘𝐸) ∈ (Base‘𝐸)) ∧ (((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin ∧ (𝐻 supp (0g‘𝐸)) ⊆ ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × ∪ 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺‘𝑤) supp (0g‘(Scalar‘𝐶)))))) → 𝐻 finSupp (0g‘𝐸))
19452, 66, 73, 154, 192, 193syl32anc 1405 . . 3 (𝜑 → 𝐻 finSupp (0g‘𝐸))
19537fveq2d 6889 . . . 4 (𝜑 → (0g‘(Scalar‘𝐴)) = (0g‘(Scalar‘𝐶)))
196195, 168eqtr2d 2797 . . 3 (𝜑 → (0g‘𝐸) = (0g‘(Scalar‘𝐴)))
197194, 196breqtrd 5131 . 2 (𝜑 → 𝐻 finSupp (0g‘(Scalar‘𝐴)))
198 fedgmullem1.z . . 3 (𝜑 → 𝑍 = (𝐵 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))))
19985, 67, 13, 15, 92, 46drgextgsum 34227 . . 3 (𝜑 → (𝐸 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))) = (𝐵 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))))
20047adantr 486 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑋 ∈ (LBasis‘𝐶))
20113adantr 486 . . . . . . . . . . . . 13 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑈 ∈ (SubRing‘𝐸))
202 subrgsubg 20829 . . . . . . . . . . . . 13 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ∈ (SubGrp‘𝐸))
203 subgsubm 19359 . . . . . . . . . . . . 13 (𝑈 ∈ (SubGrp‘𝐸) → 𝑈 ∈ (SubMnd‘𝐸))
204201, 202, 2033syl 19 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑈 ∈ (SubMnd‘𝐸))
205113ad2antrr 739 . . . . . . . . . . . . . . 15 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝐶 ∈ LMod)
20656ffvelcdmda 7084 . . . . . . . . . . . . . . 15 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)))
207118ad2antrr 739 . . . . . . . . . . . . . . . 16 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑋 ⊆ (Base‘𝐶))
208207, 61sseldd 3932 . . . . . . . . . . . . . . 15 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑖 ∈ (Base‘𝐶))
209115, 126, 127, 125lmodvscl 21153 . . . . . . . . . . . . . . 15 ((𝐶 ∈ LMod ∧ ((𝐺‘𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)) ∧ 𝑖 ∈ (Base‘𝐶)) → (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖) ∈ (Base‘𝐶))
210205, 206, 208, 209syl3anc 1398 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖) ∈ (Base‘𝐶))
21115, 20ressbas2 17416 . . . . . . . . . . . . . . . . 17 (𝑈 ⊆ (Base‘𝐸) → 𝑈 = (Base‘𝐹))
21288, 211syl 18 . . . . . . . . . . . . . . . 16 (𝜑 → 𝑈 = (Base‘𝐹))
21331, 34srabase 21452 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐹) = (Base‘𝐶))
214212, 213eqtrd 2796 . . . . . . . . . . . . . . 15 (𝜑 → 𝑈 = (Base‘𝐶))
215214ad2antrr 739 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑈 = (Base‘𝐶))
216210, 215eleqtrrd 2864 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖) ∈ 𝑈)
217216fmpttd 7115 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖)):𝑋⟶𝑈)
218200, 204, 217, 15gsumsubm 19031 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (𝐹 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
219 eqid 2761 . . . . . . . . . . . . . . . . . 18 (.r‘𝐸) = (.r‘𝐸)
22015, 219ressmulr 17478 . . . . . . . . . . . . . . . . 17 (𝑈 ∈ (SubRing‘𝐸) → (.r‘𝐸) = (.r‘𝐹))
22113, 220syl 18 . . . . . . . . . . . . . . . 16 (𝜑 → (.r‘𝐸) = (.r‘𝐹))
22231, 34sravsca 21456 . . . . . . . . . . . . . . . 16 (𝜑 → (.r‘𝐹) = ( ·𝑠 ‘𝐶))
223221, 222eqtr2d 2797 . . . . . . . . . . . . . . 15 (𝜑 → ( ·𝑠 ‘𝐶) = (.r‘𝐸))
224223ad2antrr 739 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → ( ·𝑠 ‘𝐶) = (.r‘𝐸))
225224oveqd 7437 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖) = (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖))
226225mpteq2dva 5198 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖)) = (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)))
227226oveq2d 7436 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖))))
22830, 92, 14, 109, 108, 47drgextgsum 34227 . . . . . . . . . . . 12 (𝜑 → (𝐹 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
229228adantr 486 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐹 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
230218, 227, 2293eqtr3d 2804 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖))) = (𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖))))
231230oveq1d 7435 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)))(.r‘𝐸)𝑗) = ((𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖)))(.r‘𝐸)𝑗))
23269ad2antrr 739 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝐸 ∈ Ring)
233180ad2antrr 739 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
234233, 206sseldd 3932 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → ((𝐺‘𝑗)‘𝑖) ∈ (Base‘𝐸))
235214, 88eqsstrrd 3966 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐶) ⊆ (Base‘𝐸))
236118, 235sstrd 3941 . . . . . . . . . . . . . . 15 (𝜑 → 𝑋 ⊆ (Base‘𝐸))
237236ad2antrr 739 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑋 ⊆ (Base‘𝐸))
238237, 61sseldd 3932 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑖 ∈ (Base‘𝐸))
239 eqid 2761 . . . . . . . . . . . . . . . . . 18 (Base‘𝐵) = (Base‘𝐵)
240 eqid 2761 . . . . . . . . . . . . . . . . . 18 (LBasis‘𝐵) = (LBasis‘𝐵)
241239, 240lbsss 21352 . . . . . . . . . . . . . . . . 17 (𝑌 ∈ (LBasis‘𝐵) → 𝑌 ⊆ (Base‘𝐵))
24246, 241syl 18 . . . . . . . . . . . . . . . 16 (𝜑 → 𝑌 ⊆ (Base‘𝐵))
24386, 88srabase 21452 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐸) = (Base‘𝐵))
244242, 243sseqtrrd 3968 . . . . . . . . . . . . . . 15 (𝜑 → 𝑌 ⊆ (Base‘𝐸))
245244ad2antrr 739 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑌 ⊆ (Base‘𝐸))
246 simplr 781 . . . . . . . . . . . . . 14 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑗 ∈ 𝑌)
247245, 246sseldd 3932 . . . . . . . . . . . . 13 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → 𝑗 ∈ (Base‘𝐸))
24820, 219ringass 20480 . . . . . . . . . . . . 13 ((𝐸 ∈ Ring ∧ (((𝐺‘𝑗)‘𝑖) ∈ (Base‘𝐸) ∧ 𝑖 ∈ (Base‘𝐸) ∧ 𝑗 ∈ (Base‘𝐸))) → ((((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)(.r‘𝐸)𝑗) = (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))
249232, 234, 238, 247, 248syl13anc 1399 . . . . . . . . . . . 12 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → ((((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)(.r‘𝐸)𝑗) = (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))
250249mpteq2dva 5198 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝑖 ∈ 𝑋 ↦ ((((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)(.r‘𝐸)𝑗)) = (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗))))
251250oveq2d 7436 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ ((((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)(.r‘𝐸)𝑗))) = (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))))
25269adantr 486 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝐸 ∈ Ring)
253242adantr 486 . . . . . . . . . . . . 13 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑌 ⊆ (Base‘𝐵))
254243adantr 486 . . . . . . . . . . . . 13 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (Base‘𝐸) = (Base‘𝐵))
255253, 254sseqtrrd 3968 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑌 ⊆ (Base‘𝐸))
256 simpr 490 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑗 ∈ 𝑌)
257255, 256sseldd 3932 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → 𝑗 ∈ (Base‘𝐸))
25820, 219ringcl 20477 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ ((𝐺‘𝑗)‘𝑖) ∈ (Base‘𝐸) ∧ 𝑖 ∈ (Base‘𝐸)) → (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖) ∈ (Base‘𝐸))
259232, 234, 238, 258syl3anc 1398 . . . . . . . . . . 11 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖) ∈ (Base‘𝐸))
260168breq2d 5115 . . . . . . . . . . . . . 14 (𝜑 → ((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺‘𝑗) finSupp (0g‘𝐸)))
261260adantr 486 . . . . . . . . . . . . 13 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐺‘𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺‘𝑗) finSupp (0g‘𝐸)))
26297, 261mpbid 235 . . . . . . . . . . . 12 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐺‘𝑗) finSupp (0g‘𝐸))
26320, 252, 200, 238, 182, 262rmfsupp2 33798 . . . . . . . . . . 11 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)) finSupp (0g‘𝐸))
26420, 71, 219, 252, 200, 257, 259, 263gsummulc1 20545 . . . . . . . . . 10 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ ((((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)(.r‘𝐸)𝑗))) = ((𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)))(.r‘𝐸)𝑗))
265251, 264eqtr3d 2798 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))) = ((𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)𝑖)))(.r‘𝐸)𝑗))
26683oveq1d 7435 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐿‘𝑗)(.r‘𝐸)𝑗) = ((𝐶 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)( ·𝑠 ‘𝐶)𝑖)))(.r‘𝐸)𝑗))
267231, 265, 2663eqtr4rd 2807 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐿‘𝑗)(.r‘𝐸)𝑗) = (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))))
26886, 88sravsca 21456 . . . . . . . . . 10 (𝜑 → (.r‘𝐸) = ( ·𝑠 ‘𝐵))
269268adantr 486 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (.r‘𝐸) = ( ·𝑠 ‘𝐵))
270269oveqd 7437 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐿‘𝑗)(.r‘𝐸)𝑗) = ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))
271 fvexd 6900 . . . . . . . . . . . . . 14 ((𝜑 ∧ 𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋) → ((𝐺‘𝑗)‘𝑖) ∈ V)
272 ovexd 7455 . . . . . . . . . . . . . 14 ((𝜑 ∧ 𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋) → (𝑖(.r‘𝐸)𝑗) ∈ V)
27342a1i 11 . . . . . . . . . . . . . 14 (𝜑 → 𝐻 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ ((𝐺‘𝑗)‘𝑖)))
274 fedgmullem.d . . . . . . . . . . . . . . 15 𝐷 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (𝑖(.r‘𝐸)𝑗))
275274a1i 11 . . . . . . . . . . . . . 14 (𝜑 → 𝐷 = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (𝑖(.r‘𝐸)𝑗)))
27646, 47, 271, 272, 273, 275offval22 8099 . . . . . . . . . . . . 13 (𝜑 → (𝐻 ∘f (.r‘𝐸)𝐷) = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗))))
277276oveqd 7437 . . . . . . . . . . . 12 (𝜑 → (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖) = (𝑗(𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))𝑖))
278277ad2antrr 739 . . . . . . . . . . 11 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖) = (𝑗(𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))𝑖))
279 ovexd 7455 . . . . . . . . . . . 12 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)) ∈ V)
280 eqid 2761 . . . . . . . . . . . . 13 (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗))) = (𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))
281280ovmpt4g 7567 . . . . . . . . . . . 12 ((𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋 ∧ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)) ∈ V) → (𝑗(𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))𝑖) = (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))
282246, 61, 279, 281syl3anc 1398 . . . . . . . . . . 11 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝑗(𝑗 ∈ 𝑌, 𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))𝑖) = (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))
283278, 282eqtr2d 2797 . . . . . . . . . 10 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)) = (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖))
284283mpteq2dva 5198 . . . . . . . . 9 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗))) = (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖)))
285284oveq2d 7436 . . . . . . . 8 ((𝜑 ∧ 𝑗 ∈ 𝑌) → (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (((𝐺‘𝑗)‘𝑖)(.r‘𝐸)(𝑖(.r‘𝐸)𝑗)))) = (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖))))
286267, 270, 2853eqtr3d 2804 . . . . . . 7 ((𝜑 ∧ 𝑗 ∈ 𝑌) → ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗) = (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖))))
287286mpteq2dva 5198 . . . . . 6 (𝜑 → (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗)) = (𝑗 ∈ 𝑌 ↦ (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖)))))
288287oveq2d 7436 . . . . 5 (𝜑 → (𝐸 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))) = (𝐸 Σg (𝑗 ∈ 𝑌 ↦ (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖))))))
289 ringcmn 20511 . . . . . . 7 (𝐸 ∈ Ring → 𝐸 ∈ CMnd)
29069, 289syl 18 . . . . . 6 (𝜑 → 𝐸 ∈ CMnd)
29169adantr 486 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝐸 ∈ Ring)
29238, 180eqsstrd 3965 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
293292adantr 486 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
294 simprl 783 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘(Scalar‘𝐴)))
295293, 294sseldd 3932 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘𝐸))
296 simprr 785 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐴))
29712, 22srabase 21452 . . . . . . . . . 10 (𝜑 → (Base‘𝐸) = (Base‘𝐴))
298297adantr 486 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘𝐸) = (Base‘𝐴))
299296, 298eleqtrrd 2864 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐸))
30020, 219ringcl 20477 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑙 ∈ (Base‘𝐸) ∧ 𝑘 ∈ (Base‘𝐸)) → (𝑙(.r‘𝐸)𝑘) ∈ (Base‘𝐸))
301291, 295, 299, 300syl3anc 1398 . . . . . . 7 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (𝑙(.r‘𝐸)𝑘) ∈ (Base‘𝐸))
30220, 219ringcl 20477 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ 𝑖 ∈ (Base‘𝐸) ∧ 𝑗 ∈ (Base‘𝐸)) → (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐸))
303232, 238, 247, 302syl3anc 1398 . . . . . . . . . . 11 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐸))
304297ad2antrr 739 . . . . . . . . . . 11 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (Base‘𝐸) = (Base‘𝐴))
305303, 304eleqtrd 2863 . . . . . . . . . 10 (((𝜑 ∧ 𝑗 ∈ 𝑌) ∧ 𝑖 ∈ 𝑋) → (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐴))
306305anasss 472 . . . . . . . . 9 ((𝜑 ∧ (𝑗 ∈ 𝑌 ∧ 𝑖 ∈ 𝑋)) → (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐴))
307306ralrimivva 3206 . . . . . . . 8 (𝜑 → ∀𝑗 ∈ 𝑌 ∀𝑖 ∈ 𝑋 (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐴))
308274fmpo 8079 . . . . . . . 8 (∀𝑗 ∈ 𝑌 ∀𝑖 ∈ 𝑋 (𝑖(.r‘𝐸)𝑗) ∈ (Base‘𝐴) ↔ 𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
309307, 308sylib 221 . . . . . . 7 (𝜑 → 𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
310 inidm 4172 . . . . . . 7 ((𝑌 × 𝑋) ∩ (𝑌 × 𝑋)) = (𝑌 × 𝑋)
311301, 65, 309, 48, 48, 310off 7711 . . . . . 6 (𝜑 → (𝐻 ∘f (.r‘𝐸)𝐷):(𝑌 × 𝑋)⟶(Base‘𝐸))
31269adantr 486 . . . . . . . 8 ((𝜑 ∧ 𝑢 ∈ (Base‘𝐴)) → 𝐸 ∈ Ring)
313 simpr 490 . . . . . . . . 9 ((𝜑 ∧ 𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐴))
314297adantr 486 . . . . . . . . 9 ((𝜑 ∧ 𝑢 ∈ (Base‘𝐴)) → (Base‘𝐸) = (Base‘𝐴))
315313, 314eleqtrrd 2864 . . . . . . . 8 ((𝜑 ∧ 𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐸))
31620, 219, 71ringlz 20524 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑢 ∈ (Base‘𝐸)) → ((0g‘𝐸)(.r‘𝐸)𝑢) = (0g‘𝐸))
317312, 315, 316syl2anc 596 . . . . . . 7 ((𝜑 ∧ 𝑢 ∈ (Base‘𝐴)) → ((0g‘𝐸)(.r‘𝐸)𝑢) = (0g‘𝐸))
31848, 73, 73, 65, 309, 194, 317offinsupp1 33318 . . . . . 6 (𝜑 → (𝐻 ∘f (.r‘𝐸)𝐷) finSupp (0g‘𝐸))
31920, 71, 290, 46, 47, 311, 318gsumxp 20190 . . . . 5 (𝜑 → (𝐸 Σg (𝐻 ∘f (.r‘𝐸)𝐷)) = (𝐸 Σg (𝑗 ∈ 𝑌 ↦ (𝐸 Σg (𝑖 ∈ 𝑋 ↦ (𝑗(𝐻 ∘f (.r‘𝐸)𝐷)𝑖))))))
32012, 22sravsca 21456 . . . . . . . 8 (𝜑 → (.r‘𝐸) = ( ·𝑠 ‘𝐴))
321320ofeqd 7695 . . . . . . 7 (𝜑 → ∘f (.r‘𝐸) = ∘f ( ·𝑠 ‘𝐴))
322321oveqd 7437 . . . . . 6 (𝜑 → (𝐻 ∘f (.r‘𝐸)𝐷) = (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷))
323322oveq2d 7436 . . . . 5 (𝜑 → (𝐸 Σg (𝐻 ∘f (.r‘𝐸)𝐷)) = (𝐸 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)))
324288, 319, 3233eqtr2rd 2803 . . . 4 (𝜑 → (𝐸 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)) = (𝐸 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))))
325 ovexd 7455 . . . . 5 (𝜑 → (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷) ∈ V)
326 fedgmullem1.a . . . . . 6 (𝜑 → 𝑍 ∈ (Base‘𝐴))
327326elfvexd 6921 . . . . 5 (𝜑 → 𝐴 ∈ V)
32811, 325, 67, 327, 22gsumsra 33608 . . . 4 (𝜑 → (𝐸 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)) = (𝐴 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)))
329324, 328eqtr3d 2798 . . 3 (𝜑 → (𝐸 Σg (𝑗 ∈ 𝑌 ↦ ((𝐿‘𝑗)( ·𝑠 ‘𝐵)𝑗))) = (𝐴 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)))
330198, 199, 3293eqtr2d 2802 . 2 (𝜑 → 𝑍 = (𝐴 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷)))
331197, 330jca 521 1 (𝜑 → (𝐻 finSupp (0g‘(Scalar‘𝐴)) ∧ 𝑍 = (𝐴 Σg (𝐻 ∘f ( ·𝑠 ‘𝐴)𝐷))))
Colors of variables:    wff setvar class
This proof depends on syntax axioms:   → wi 4   ↔ wb 209   ∧ wa 401   ∧ w3a 1103   = wceq 1570   ∈ wcel 2145  ∀wral 3077  Vcvv 3451   ∖ cdif 3896   ⊆ wss 3899  {csn 4584  ∪ ciun 4951   class class class wbr 5103   ↦ cmpt 5186   × cxp 5649  Fun wfun 6532  ⟶wf 6534  ‘cfv 6538  (class class class)co 7420   ∈ cmpo 7422   ∘f cof 7691   supp csupp 8177   ↑m cmap 8847  Fincfn 8973   finSupp cfsupp 9353  Basecbs 17387   ↾s cress 17408  .rcmulr 17429  Scalarcsca 17431   ·𝑠 cvsca 17432  0gc0g 17610   Σg cgsu 17611  SubMndcsubmnd 18977  Grpcgrp 19144  SubGrpcsubg 19330  CMndccmn 19994  Ringcrg 20459  SubRingcsubrg 20821  DivRingcdr 20980  LModclmod 21135  LSpanclspn 21246  LBasisclbs 21349  LVecclvec 21377  subringAlg csra 21446  LIndSclinds 22111
This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1828  ax-4 1842  ax-5 1943  ax-6 2000  ax-7 2041  ax-8 2147  ax-9 2155  ax-10 2178  ax-11 2194  ax-12 2213  ax-ext 2733  ax-rep 5232  ax-sep 5249  ax-nul 5260  ax-pow 5327  ax-pr 5391  ax-un 7751  ax-cnex 11256  ax-resscn 11257  ax-1cn 11258  ax-icn 11259  ax-addcl 11260  ax-addrcl 11261  ax-mulcl 11262  ax-mulrcl 11263  ax-mulcom 11264  ax-addass 11265  ax-mulass 11266  ax-distr 11267  ax-i2m1 11268  ax-1ne0 11269  ax-1rid 11270  ax-rnegex 11271  ax-rrecex 11272  ax-cnre 11273  ax-pre-lttri 11274  ax-pre-lttrn 11275  ax-pre-ltadd 11276  ax-pre-mulgt0 11277
This proof depends on definitions:  df-bi 210  df-an 402  df-or 862  df-3or 1104  df-3an 1105  df-tru 1573  df-fal 1583  df-ex 1813  df-nf 1817  df-sb 2100  df-mo 2565  df-eu 2595  df-clab 2740  df-cleq 2753  df-clel 2836  df-nfc 2910  df-ne 2957  df-nel 3063  df-ral 3078  df-rex 3088  df-rmo 3366  df-reu 3367  df-rab 3414  df-v 3453  df-sbc 3740  df-csb 3848  df-dif 3902  df-un 3904  df-in 3906  df-ss 3916  df-pss 3919  df-nul 4280  df-if 4483  df-pw 4559  df-sn 4585  df-pr 4587  df-tp 4589  df-op 4591  df-uni 4868  df-int 4908  df-iun 4953  df-iin 4954  df-br 5104  df-opab 5168  df-mpt 5187  df-tr 5213  df-id 5546  df-eprel 5551  df-po 5559  df-so 5560  df-fr 5604  df-se 5605  df-we 5606  df-xp 5657  df-rel 5658  df-cnv 5659  df-co 5660  df-dm 5661  df-rn 5662  df-res 5663  df-ima 5664  df-pred 6304  df-ord 6365  df-on 6366  df-lim 6367  df-suc 6368  df-iota 6494  df-fun 6540  df-fn 6541  df-f 6542  df-f1 6543  df-fo 6544  df-f1o 6545  df-fv 6546  df-isom 6547  df-riota 7377  df-ov 7423  df-oprab 7424  df-mpo 7425  df-of 7693  df-om 7878  df-1st 8001  df-2nd 8002  df-supp 8178  df-frecs 8299  df-wrecs 8330  df-recs 8379  df-rdg 8418  df-1o 8476  df-2o 8477  df-er 8717  df-map 8849  df-ixp 8926  df-en 8974  df-dom 8975  df-sdom 8976  df-fin 8977  df-fsupp 9354  df-sup 9434  df-oi 9504  df-card 10020  df-pnf 11345  df-mnf 11346  df-xr 11347  df-ltxr 11348  df-le 11349  df-sub 11543  df-neg 11544  df-nn 12336  df-2 12405  df-3 12406  df-4 12407  df-5 12408  df-6 12409  df-7 12410  df-8 12411  df-9 12412  df-n0 12607  df-z 12694  df-dec 12815  df-uz 12966  df-fz 13640  df-fzo 13789  df-seq 14145  df-hash 14475  df-struct 17325  df-sets 17342  df-slot 17360  df-ndx 17372  df-base 17388  df-ress 17409  df-plusg 17441  df-mulr 17442  df-sca 17444  df-vsca 17445  df-ip 17446  df-tset 17447  df-ple 17448  df-ds 17450  df-hom 17452  df-cco 17453  df-0g 17612  df-gsum 17613  df-prds 17618  df-pws 17620  df-mre 17756  df-mrc 17757  df-acs 17759  df-mgm 18816  df-sgrp 18908  df-mnd 18924  df-mhm 18978  df-submnd 18979  df-grp 19147  df-minusg 19148  df-sbg 19149  df-mulg 19278  df-subg 19333  df-ghm 19428  df-cntz 19531  df-cmn 19996  df-abl 19997  df-mgp 20361  df-rng 20375  df-ur 20408  df-ring 20461  df-nzr 20763  df-subrg 20822  df-drng 20982  df-lmod 21137  df-lss 21207  df-lsp 21247  df-lmhm 21297  df-lbs 21350  df-lvec 21378  df-sra 21448  df-rgmod 21449  df-dsmm 22038  df-frlm 22053  df-uvc 22089  df-lindf 22112  df-linds 22113
This theorem is used by:  fedgmul  34263
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