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Theorem fedgmullem1 33928
Description: Lemma for fedgmul 33930. (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 785 . . . . . . . . . . . . 13 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → 𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋))
3 simplr 778 . . . . . . . . . . . . 13 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → 𝑗𝑌)
42, 3ffvelcdmd 7068 . . . . . . . . . . . 12 ((((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ 𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5 elmapi 8832 . . . . . . . . . . . 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 470 . . . . . . . . . 10 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
8 simprr 782 . . . . . . . . . 10 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → 𝑖𝑋)
97, 8ffvelcdmd 7068 . . . . . . . . 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 20650 . . . . . . . . . . . . . . . . . 18 (𝑈 ∈ (SubRing‘𝐸) → (𝑉 ∈ (SubRing‘𝐹) ↔ (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈)))
1716biimpa 480 . . . . . . . . . . . . . . . . 17 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉 ∈ (SubRing‘𝐹)) → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈))
1813, 14, 17syl2anc 593 . . . . . . . . . . . . . . . 16 (𝜑 → (𝑉 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈))
1918simpld 498 . . . . . . . . . . . . . . 15 (𝜑𝑉 ∈ (SubRing‘𝐸))
20 eqid 2764 . . . . . . . . . . . . . . . 16 (Base‘𝐸) = (Base‘𝐸)
2120subrgss 20624 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐸) → 𝑉 ⊆ (Base‘𝐸))
2219, 21syl 17 . . . . . . . . . . . . . 14 (𝜑𝑉 ⊆ (Base‘𝐸))
2312, 22srasca 21249 . . . . . . . . . . . . 13 (𝜑 → (𝐸s 𝑉) = (Scalar‘𝐴))
2410, 23eqtrid 2811 . . . . . . . . . . . 12 (𝜑𝐾 = (Scalar‘𝐴))
2518simprd 499 . . . . . . . . . . . . . . 15 (𝜑𝑉𝑈)
26 ressabs 17286 . . . . . . . . . . . . . . 15 ((𝑈 ∈ (SubRing‘𝐸) ∧ 𝑉𝑈) → ((𝐸s 𝑈) ↾s 𝑉) = (𝐸s 𝑉))
2713, 25, 26syl2anc 593 . . . . . . . . . . . . . 14 (𝜑 → ((𝐸s 𝑈) ↾s 𝑉) = (𝐸s 𝑉))
2815oveq1i 7408 . . . . . . . . . . . . . 14 (𝐹s 𝑉) = ((𝐸s 𝑈) ↾s 𝑉)
2927, 28, 103eqtr4g 2824 . . . . . . . . . . . . 13 (𝜑 → (𝐹s 𝑉) = 𝐾)
30 fedgmul.c . . . . . . . . . . . . . . 15 𝐶 = ((subringAlg ‘𝐹)‘𝑉)
3130a1i 11 . . . . . . . . . . . . . 14 (𝜑𝐶 = ((subringAlg ‘𝐹)‘𝑉))
32 eqid 2764 . . . . . . . . . . . . . . . 16 (Base‘𝐹) = (Base‘𝐹)
3332subrgss 20624 . . . . . . . . . . . . . . 15 (𝑉 ∈ (SubRing‘𝐹) → 𝑉 ⊆ (Base‘𝐹))
3414, 33syl 17 . . . . . . . . . . . . . 14 (𝜑𝑉 ⊆ (Base‘𝐹))
3531, 34srasca 21249 . . . . . . . . . . . . 13 (𝜑 → (𝐹s 𝑉) = (Scalar‘𝐶))
3629, 35eqtr3d 2801 . . . . . . . . . . . 12 (𝜑𝐾 = (Scalar‘𝐶))
3724, 36eqtr3d 2801 . . . . . . . . . . 11 (𝜑 → (Scalar‘𝐴) = (Scalar‘𝐶))
3837fveq2d 6873 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
3938ad2antrr 736 . . . . . . . . 9 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → (Base‘(Scalar‘𝐴)) = (Base‘(Scalar‘𝐶)))
409, 39eleqtrrd 2867 . . . . . . . 8 (((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) ∧ (𝑗𝑌𝑖𝑋)) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
4140ralrimivva 3207 . . . . . . 7 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → ∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
42 fedgmullem.h . . . . . . . 8 𝐻 = (𝑗𝑌, 𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖))
4342fmpo 8051 . . . . . . 7 (∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
4441, 43sylib 220 . . . . . 6 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
45 fvexd 6884 . . . . . . 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 7736 . . . . . . . 8 (𝜑 → (𝑌 × 𝑋) ∈ V)
4948adantr 484 . . . . . . 7 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝑌 × 𝑋) ∈ V)
5045, 49elmapd 8823 . . . . . 6 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → (𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)) ↔ 𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴))))
5144, 50mpbird 259 . . . . 5 ((𝜑𝐺:𝑌⟶((Base‘(Scalar‘𝐶)) ↑m 𝑋)) → 𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
521, 51mpdan 697 . . . 4 (𝜑𝐻 ∈ ((Base‘(Scalar‘𝐴)) ↑m (𝑌 × 𝑋)))
53 simpl 486 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝜑)
5453adantr 484 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝜑)
551ffvelcdmda 7067 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝐺𝑗) ∈ ((Base‘(Scalar‘𝐶)) ↑m 𝑋))
5655, 5syl 17 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5756adantr 484 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶)))
5838feq3d 6678 . . . . . . . . . . 11 (𝜑 → ((𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)) ↔ (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶))))
5958biimpar 481 . . . . . . . . . 10 ((𝜑 ∧ (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐶))) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
6054, 57, 59syl2anc 593 . . . . . . . . 9 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝐺𝑗):𝑋⟶(Base‘(Scalar‘𝐴)))
61 simpr 488 . . . . . . . . 9 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖𝑋)
6260, 61ffvelcdmd 7068 . . . . . . . 8 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6362ralrimiva 3156 . . . . . . 7 ((𝜑𝑗𝑌) → ∀𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6463ralrimiva 3156 . . . . . 6 (𝜑 → ∀𝑗𝑌𝑖𝑋 ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐴)))
6564, 43sylib 220 . . . . 5 (𝜑𝐻:(𝑌 × 𝑋)⟶(Base‘(Scalar‘𝐴)))
6665ffund 6698 . . . 4 (𝜑 → Fun 𝐻)
67 fedgmul.1 . . . . . 6 (𝜑𝐸 ∈ DivRing)
68 drngring 20788 . . . . . 6 (𝐸 ∈ DivRing → 𝐸 ∈ Ring)
6967, 68syl 17 . . . . 5 (𝜑𝐸 ∈ Ring)
70 ringgrp 20290 . . . . 5 (𝐸 ∈ Ring → 𝐸 ∈ Grp)
71 eqid 2764 . . . . . 6 (0g𝐸) = (0g𝐸)
7220, 71grpidcl 19009 . . . . 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 9317 . . . . . 6 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ∈ Fin)
76 simpl 486 . . . . . . . 8 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝜑)
77 simpr 488 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵)))))
7877eldifad 3918 . . . . . . . 8 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → 𝑗𝑌)
79 fedgmullem1.l . . . . . . . . . 10 (𝜑𝐿:𝑌⟶(Base‘(Scalar‘𝐵)))
80 ssidd 3961 . . . . . . . . . 10 (𝜑 → (𝐿 supp (0g‘(Scalar‘𝐵))) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
81 fvexd 6884 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) ∈ V)
8279, 80, 46, 81suppssr 8177 . . . . . . . . 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 600 . . . . . . . . 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 20624 . . . . . . . . . . . . . . 15 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ⊆ (Base‘𝐸))
8813, 87syl 17 . . . . . . . . . . . . . 14 (𝜑𝑈 ⊆ (Base‘𝐸))
8986, 88srasca 21249 . . . . . . . . . . . . 13 (𝜑 → (𝐸s 𝑈) = (Scalar‘𝐵))
9015, 89eqtrid 2811 . . . . . . . . . . . 12 (𝜑𝐹 = (Scalar‘𝐵))
9190fveq2d 6873 . . . . . . . . . . 11 (𝜑 → (0g𝐹) = (0g‘(Scalar‘𝐵)))
92 fedgmul.2 . . . . . . . . . . . 12 (𝜑𝐹 ∈ DivRing)
9330, 92, 14drgext0g 33889 . . . . . . . . . . 11 (𝜑 → (0g𝐹) = (0g𝐶))
9491, 93eqtr3d 2801 . . . . . . . . . 10 (𝜑 → (0g‘(Scalar‘𝐵)) = (0g𝐶))
9594adantr 484 . . . . . . . . 9 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (0g‘(Scalar‘𝐵)) = (0g𝐶))
9682, 84, 953eqtr3d 2807 . . . . . . . 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 5105 . . . . . . . . . . . . 13 (𝑔 = (𝐺𝑗) → (𝑔 finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶))))
99 fveq1 6868 . . . . . . . . . . . . . . . . 17 (𝑔 = (𝐺𝑗) → (𝑔𝑖) = ((𝐺𝑗)‘𝑖))
10099oveq1d 7413 . . . . . . . . . . . . . . . 16 (𝑔 = (𝐺𝑗) → ((𝑔𝑖)( ·𝑠𝐶)𝑖) = (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))
101100mpteq2dv 5196 . . . . . . . . . . . . . . 15 (𝑔 = (𝐺𝑗) → (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))
102101oveq2d 7414 . . . . . . . . . . . . . 14 (𝑔 = (𝐺𝑗) → (𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
103102eqeq1d 2766 . . . . . . . . . . . . 13 (𝑔 = (𝐺𝑗) → ((𝐶 Σg (𝑖𝑋 ↦ ((𝑔𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶) ↔ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)))
10498, 103anbi12d 641 . . . . . . . . . . . 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 2768 . . . . . . . . . . . 12 (𝑔 = (𝐺𝑗) → (𝑔 = (𝑋 × {(0g‘(Scalar‘𝐶))}) ↔ (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
106104, 105imbi12d 346 . . . . . . . . . . 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 2864 . . . . . . . . . . . . . . 15 (𝜑 → (𝐹s 𝑉) ∈ DivRing)
109 eqid 2764 . . . . . . . . . . . . . . . 16 (𝐹s 𝑉) = (𝐹s 𝑉)
11030, 109sralvec 33884 . . . . . . . . . . . . . . 15 ((𝐹 ∈ DivRing ∧ (𝐹s 𝑉) ∈ DivRing ∧ 𝑉 ∈ (SubRing‘𝐹)) → 𝐶 ∈ LVec)
11192, 108, 14, 110syl3anc 1392 . . . . . . . . . . . . . 14 (𝜑𝐶 ∈ LVec)
112 lveclmod 21175 . . . . . . . . . . . . . 14 (𝐶 ∈ LVec → 𝐶 ∈ LMod)
113111, 112syl 17 . . . . . . . . . . . . 13 (𝜑𝐶 ∈ LMod)
114113adantr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝐶 ∈ LMod)
115 eqid 2764 . . . . . . . . . . . . . . 15 (Base‘𝐶) = (Base‘𝐶)
116 eqid 2764 . . . . . . . . . . . . . . 15 (LBasis‘𝐶) = (LBasis‘𝐶)
117115, 116lbsss 21146 . . . . . . . . . . . . . 14 (𝑋 ∈ (LBasis‘𝐶) → 𝑋 ⊆ (Base‘𝐶))
11847, 117syl 17 . . . . . . . . . . . . 13 (𝜑𝑋 ⊆ (Base‘𝐶))
119118adantr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ⊆ (Base‘𝐶))
120 eqid 2764 . . . . . . . . . . . . . . . 16 (LSpan‘𝐶) = (LSpan‘𝐶)
121115, 116, 120islbs4 21886 . . . . . . . . . . . . . . 15 (𝑋 ∈ (LBasis‘𝐶) ↔ (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
12247, 121sylib 220 . . . . . . . . . . . . . 14 (𝜑 → (𝑋 ∈ (LIndS‘𝐶) ∧ ((LSpan‘𝐶)‘𝑋) = (Base‘𝐶)))
123122simpld 498 . . . . . . . . . . . . 13 (𝜑𝑋 ∈ (LIndS‘𝐶))
124123adantr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ∈ (LIndS‘𝐶))
125 eqid 2764 . . . . . . . . . . . . . 14 (Base‘(Scalar‘𝐶)) = (Base‘(Scalar‘𝐶))
126 eqid 2764 . . . . . . . . . . . . . 14 (Scalar‘𝐶) = (Scalar‘𝐶)
127 eqid 2764 . . . . . . . . . . . . . 14 ( ·𝑠𝐶) = ( ·𝑠𝐶)
128 eqid 2764 . . . . . . . . . . . . . 14 (0g𝐶) = (0g𝐶)
129 eqid 2764 . . . . . . . . . . . . . 14 (0g‘(Scalar‘𝐶)) = (0g‘(Scalar‘𝐶))
130115, 125, 126, 127, 128, 129islinds5 33555 . . . . . . . . . . . . 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 480 . . . . . . . . . . . 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 848 . . . . . . . . . . 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 3584 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
13497, 133mpand 705 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))})))
135134imp 410 . . . . . . . 8 (((𝜑𝑗𝑌) ∧ (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (0g𝐶)) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
13676, 78, 96, 135syl21anc 848 . . . . . . 7 ((𝜑𝑗 ∈ (𝑌 ∖ (𝐿 supp (0g‘(Scalar‘𝐵))))) → (𝐺𝑗) = (𝑋 × {(0g‘(Scalar‘𝐶))}))
1371, 136suppss 8176 . . . . . 6 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ (𝐿 supp (0g‘(Scalar‘𝐵))))
13875, 137ssfid 9215 . . . . 5 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ∈ Fin)
139 suppssdm 8159 . . . . . . . . . 10 (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ dom 𝐺
140139, 1fssdm 6713 . . . . . . . . 9 (𝜑 → (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) ⊆ 𝑌)
141140sselda 3938 . . . . . . . 8 ((𝜑𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → 𝑤𝑌)
142 eleq1w 2847 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝑗𝑌𝑤𝑌))
143142anbi2d 639 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝜑𝑗𝑌) ↔ (𝜑𝑤𝑌)))
144 fveq2 6869 . . . . . . . . . . . 12 (𝑗 = 𝑤 → (𝐺𝑗) = (𝐺𝑤))
145144breq1d 5112 . . . . . . . . . . 11 (𝑗 = 𝑤 → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶))))
146143, 145imbi12d 346 . . . . . . . . . 10 (𝑗 = 𝑤 → (((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g‘(Scalar‘𝐶))) ↔ ((𝜑𝑤𝑌) → (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶)))))
147146, 97chvarvv 2011 . . . . . . . . 9 ((𝜑𝑤𝑌) → (𝐺𝑤) finSupp (0g‘(Scalar‘𝐶)))
148147fsuppimpd 9317 . . . . . . . 8 ((𝜑𝑤𝑌) → ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
149141, 148syldan 600 . . . . . . 7 ((𝜑𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))) → ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
150149ralrimiva 3156 . . . . . 6 (𝜑 → ∀𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
151 iunfi 9288 . . . . . 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 593 . . . . 5 (𝜑 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶))) ∈ Fin)
153 xpfi 9266 . . . . 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 593 . . . 4 (𝜑 → ((𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})) × 𝑤 ∈ (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))}))((𝐺𝑤) supp (0g‘(Scalar‘𝐶)))) ∈ Fin)
155 fveq2 6869 . . . . . . . . . 10 (𝑣 = 𝑗 → (𝐺𝑣) = (𝐺𝑗))
156155fveq1d 6871 . . . . . . . . 9 (𝑣 = 𝑗 → ((𝐺𝑣)‘𝑢) = ((𝐺𝑗)‘𝑢))
157156mpteq2dv 5196 . . . . . . . 8 (𝑣 = 𝑗 → (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)) = (𝑢𝑋 ↦ ((𝐺𝑗)‘𝑢)))
158 fveq2 6869 . . . . . . . . 9 (𝑢 = 𝑖 → ((𝐺𝑗)‘𝑢) = ((𝐺𝑗)‘𝑖))
159158cbvmptv 5206 . . . . . . . 8 (𝑢𝑋 ↦ ((𝐺𝑗)‘𝑢)) = (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖))
160157, 159eqtrdi 2815 . . . . . . 7 (𝑣 = 𝑗 → (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)) = (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖)))
161160cbvmptv 5206 . . . . . 6 (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) = (𝑗𝑌 ↦ (𝑖𝑋 ↦ ((𝐺𝑗)‘𝑖)))
162 fvexd 6884 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) ∈ V)
163 fvexd 6884 . . . . . 6 ((𝜑 ∧ (𝑗𝑌𝑖𝑋)) → ((𝐺𝑗)‘𝑖) ∈ V)
16442, 161, 46, 47, 162, 163suppovss 32885 . . . . 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 20631 . . . . . . . 8 (𝑉 ∈ (SubRing‘𝐸) → (0g𝐸) = (0g𝐾))
16619, 165syl 17 . . . . . . 7 (𝜑 → (0g𝐸) = (0g𝐾))
16736fveq2d 6873 . . . . . . 7 (𝜑 → (0g𝐾) = (0g‘(Scalar‘𝐶)))
168166, 167eqtr2d 2800 . . . . . 6 (𝜑 → (0g‘(Scalar‘𝐶)) = (0g𝐸))
169168oveq2d 7414 . . . . 5 (𝜑 → (𝐻 supp (0g‘(Scalar‘𝐶))) = (𝐻 supp (0g𝐸)))
1701feqmptd 6937 . . . . . . . 8 (𝜑𝐺 = (𝑣𝑌 ↦ (𝐺𝑣)))
171 eleq1w 2847 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝑗𝑌𝑣𝑌))
172171anbi2d 639 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝜑𝑗𝑌) ↔ (𝜑𝑣𝑌)))
173 fveq2 6869 . . . . . . . . . . . . 13 (𝑗 = 𝑣 → (𝐺𝑗) = (𝐺𝑣))
174173feq1d 6675 . . . . . . . . . . . 12 (𝑗 = 𝑣 → ((𝐺𝑗):𝑋⟶(Base‘𝐸) ↔ (𝐺𝑣):𝑋⟶(Base‘𝐸)))
175172, 174imbi12d 346 . . . . . . . . . . 11 (𝑗 = 𝑣 → (((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘𝐸)) ↔ ((𝜑𝑣𝑌) → (𝐺𝑣):𝑋⟶(Base‘𝐸))))
17610, 20ressbas2 17276 . . . . . . . . . . . . . . . 16 (𝑉 ⊆ (Base‘𝐸) → 𝑉 = (Base‘𝐾))
17722, 176syl 17 . . . . . . . . . . . . . . 15 (𝜑𝑉 = (Base‘𝐾))
17836fveq2d 6873 . . . . . . . . . . . . . . 15 (𝜑 → (Base‘𝐾) = (Base‘(Scalar‘𝐶)))
179177, 178eqtrd 2799 . . . . . . . . . . . . . 14 (𝜑𝑉 = (Base‘(Scalar‘𝐶)))
180179, 22eqsstrrd 3973 . . . . . . . . . . . . 13 (𝜑 → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
181180adantr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
18256, 181fssd 6711 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐺𝑗):𝑋⟶(Base‘𝐸))
183175, 182chvarvv 2011 . . . . . . . . . 10 ((𝜑𝑣𝑌) → (𝐺𝑣):𝑋⟶(Base‘𝐸))
184183feqmptd 6937 . . . . . . . . 9 ((𝜑𝑣𝑌) → (𝐺𝑣) = (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))
185184mpteq2dva 5195 . . . . . . . 8 (𝜑 → (𝑣𝑌 ↦ (𝐺𝑣)) = (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))))
186170, 185eqtr2d 2800 . . . . . . 7 (𝜑 → (𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) = 𝐺)
187186oveq1d 7413 . . . . . 6 (𝜑 → ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢))) supp (𝑋 × {(0g‘(Scalar‘𝐶))})) = (𝐺 supp (𝑋 × {(0g‘(Scalar‘𝐶))})))
188186fveq1d 6871 . . . . . . . 8 (𝜑 → ((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) = (𝐺𝑤))
189188oveq1d 7413 . . . . . . 7 (𝜑 → (((𝑣𝑌 ↦ (𝑢𝑋 ↦ ((𝐺𝑣)‘𝑢)))‘𝑤) supp (0g‘(Scalar‘𝐶))) = ((𝐺𝑤) supp (0g‘(Scalar‘𝐶))))
190187, 189iuneq12d 4981 . . . . . 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 5680 . . . . 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 3992 . . . 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 9328 . . . 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 1399 . . 3 (𝜑𝐻 finSupp (0g𝐸))
19537fveq2d 6873 . . . 4 (𝜑 → (0g‘(Scalar‘𝐴)) = (0g‘(Scalar‘𝐶)))
196195, 168eqtr2d 2800 . . 3 (𝜑 → (0g𝐸) = (0g‘(Scalar‘𝐴)))
197194, 196breqtrd 5128 . 2 (𝜑𝐻 finSupp (0g‘(Scalar‘𝐴)))
198 fedgmullem1.z . . 3 (𝜑𝑍 = (𝐵 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
19985, 67, 13, 15, 92, 46drgextgsum 33894 . . 3 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐵 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
20047adantr 484 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑋 ∈ (LBasis‘𝐶))
20113adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → 𝑈 ∈ (SubRing‘𝐸))
202 subrgsubg 20629 . . . . . . . . . . . . 13 (𝑈 ∈ (SubRing‘𝐸) → 𝑈 ∈ (SubGrp‘𝐸))
203 subgsubm 19192 . . . . . . . . . . . . 13 (𝑈 ∈ (SubGrp‘𝐸) → 𝑈 ∈ (SubMnd‘𝐸))
204201, 202, 2033syl 18 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑈 ∈ (SubMnd‘𝐸))
205113ad2antrr 736 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝐶 ∈ LMod)
20656ffvelcdmda 7067 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)))
207118ad2antrr 736 . . . . . . . . . . . . . . . 16 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑋 ⊆ (Base‘𝐶))
208207, 61sseldd 3939 . . . . . . . . . . . . . . 15 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖 ∈ (Base‘𝐶))
209115, 126, 127, 125lmodvscl 20947 . . . . . . . . . . . . . . 15 ((𝐶 ∈ LMod ∧ ((𝐺𝑗)‘𝑖) ∈ (Base‘(Scalar‘𝐶)) ∧ 𝑖 ∈ (Base‘𝐶)) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ (Base‘𝐶))
210205, 206, 208, 209syl3anc 1392 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ (Base‘𝐶))
21115, 20ressbas2 17276 . . . . . . . . . . . . . . . . 17 (𝑈 ⊆ (Base‘𝐸) → 𝑈 = (Base‘𝐹))
21288, 211syl 17 . . . . . . . . . . . . . . . 16 (𝜑𝑈 = (Base‘𝐹))
21331, 34srabase 21246 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐹) = (Base‘𝐶))
214212, 213eqtrd 2799 . . . . . . . . . . . . . . 15 (𝜑𝑈 = (Base‘𝐶))
215214ad2antrr 736 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑈 = (Base‘𝐶))
216210, 215eleqtrrd 2867 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) ∈ 𝑈)
217216fmpttd 7098 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)):𝑋𝑈)
218200, 204, 217, 15gsumsubm 18871 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
219 eqid 2764 . . . . . . . . . . . . . . . . . 18 (.r𝐸) = (.r𝐸)
22015, 219ressmulr 17338 . . . . . . . . . . . . . . . . 17 (𝑈 ∈ (SubRing‘𝐸) → (.r𝐸) = (.r𝐹))
22113, 220syl 17 . . . . . . . . . . . . . . . 16 (𝜑 → (.r𝐸) = (.r𝐹))
22231, 34sravsca 21250 . . . . . . . . . . . . . . . 16 (𝜑 → (.r𝐹) = ( ·𝑠𝐶))
223221, 222eqtr2d 2800 . . . . . . . . . . . . . . 15 (𝜑 → ( ·𝑠𝐶) = (.r𝐸))
224223ad2antrr 736 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ( ·𝑠𝐶) = (.r𝐸))
225224oveqd 7415 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖) = (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))
226225mpteq2dva 5195 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))
227226oveq2d 7414 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))))
22830, 92, 14, 109, 108, 47drgextgsum 33894 . . . . . . . . . . . 12 (𝜑 → (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
229228adantr 484 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝐹 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
230218, 227, 2293eqtr3d 2807 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖))) = (𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖))))
231230oveq1d 7413 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗) = ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))(.r𝐸)𝑗))
23269ad2antrr 736 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝐸 ∈ Ring)
233180ad2antrr 736 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (Base‘(Scalar‘𝐶)) ⊆ (Base‘𝐸))
234233, 206sseldd 3939 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ (Base‘𝐸))
235214, 88eqsstrrd 3973 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐶) ⊆ (Base‘𝐸))
236118, 235sstrd 3948 . . . . . . . . . . . . . . 15 (𝜑𝑋 ⊆ (Base‘𝐸))
237236ad2antrr 736 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑋 ⊆ (Base‘𝐸))
238237, 61sseldd 3939 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑖 ∈ (Base‘𝐸))
239 eqid 2764 . . . . . . . . . . . . . . . . . 18 (Base‘𝐵) = (Base‘𝐵)
240 eqid 2764 . . . . . . . . . . . . . . . . . 18 (LBasis‘𝐵) = (LBasis‘𝐵)
241239, 240lbsss 21146 . . . . . . . . . . . . . . . . 17 (𝑌 ∈ (LBasis‘𝐵) → 𝑌 ⊆ (Base‘𝐵))
24246, 241syl 17 . . . . . . . . . . . . . . . 16 (𝜑𝑌 ⊆ (Base‘𝐵))
24386, 88srabase 21246 . . . . . . . . . . . . . . . 16 (𝜑 → (Base‘𝐸) = (Base‘𝐵))
244242, 243sseqtrrd 3975 . . . . . . . . . . . . . . 15 (𝜑𝑌 ⊆ (Base‘𝐸))
245244ad2antrr 736 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑌 ⊆ (Base‘𝐸))
246 simplr 778 . . . . . . . . . . . . . 14 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑗𝑌)
247245, 246sseldd 3939 . . . . . . . . . . . . 13 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → 𝑗 ∈ (Base‘𝐸))
24820, 219ringass 20305 . . . . . . . . . . . . 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 1393 . . . . . . . . . . . 12 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
250249mpteq2dva 5195 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗)) = (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))))
251250oveq2d 7414 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗))) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))))
25269adantr 484 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝐸 ∈ Ring)
253242adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → 𝑌 ⊆ (Base‘𝐵))
254243adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → (Base‘𝐸) = (Base‘𝐵))
255253, 254sseqtrrd 3975 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑌 ⊆ (Base‘𝐸))
256 simpr 488 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → 𝑗𝑌)
257255, 256sseldd 3939 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → 𝑗 ∈ (Base‘𝐸))
25820, 219ringcl 20302 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ ((𝐺𝑗)‘𝑖) ∈ (Base‘𝐸) ∧ 𝑖 ∈ (Base‘𝐸)) → (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖) ∈ (Base‘𝐸))
259232, 234, 238, 258syl3anc 1392 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖) ∈ (Base‘𝐸))
260168breq2d 5114 . . . . . . . . . . . . . 14 (𝜑 → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g𝐸)))
261260adantr 484 . . . . . . . . . . . . 13 ((𝜑𝑗𝑌) → ((𝐺𝑗) finSupp (0g‘(Scalar‘𝐶)) ↔ (𝐺𝑗) finSupp (0g𝐸)))
26297, 261mpbid 234 . . . . . . . . . . . 12 ((𝜑𝑗𝑌) → (𝐺𝑗) finSupp (0g𝐸))
26320, 252, 200, 238, 182, 262rmfsupp2 33420 . . . . . . . . . . 11 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)) finSupp (0g𝐸))
26420, 71, 219, 252, 200, 257, 259, 263gsummulc1 20366 . . . . . . . . . 10 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ ((((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)(.r𝐸)𝑗))) = ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗))
265251, 264eqtr3d 2801 . . . . . . . . 9 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))) = ((𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)𝑖)))(.r𝐸)𝑗))
26683oveq1d 7413 . . . . . . . . 9 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = ((𝐶 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)( ·𝑠𝐶)𝑖)))(.r𝐸)𝑗))
267231, 265, 2663eqtr4rd 2810 . . . . . . . 8 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))))
26886, 88sravsca 21250 . . . . . . . . . 10 (𝜑 → (.r𝐸) = ( ·𝑠𝐵))
269268adantr 484 . . . . . . . . 9 ((𝜑𝑗𝑌) → (.r𝐸) = ( ·𝑠𝐵))
270269oveqd 7415 . . . . . . . 8 ((𝜑𝑗𝑌) → ((𝐿𝑗)(.r𝐸)𝑗) = ((𝐿𝑗)( ·𝑠𝐵)𝑗))
271 fvexd 6884 . . . . . . . . . . . . . 14 ((𝜑𝑗𝑌𝑖𝑋) → ((𝐺𝑗)‘𝑖) ∈ V)
272 ovexd 7433 . . . . . . . . . . . . . 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 8069 . . . . . . . . . . . . 13 (𝜑 → (𝐻f (.r𝐸)𝐷) = (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))))
277276oveqd 7415 . . . . . . . . . . . 12 (𝜑 → (𝑗(𝐻f (.r𝐸)𝐷)𝑖) = (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖))
278277ad2antrr 736 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑗(𝐻f (.r𝐸)𝐷)𝑖) = (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖))
279 ovexd 7433 . . . . . . . . . . . 12 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)) ∈ V)
280 eqid 2764 . . . . . . . . . . . . 13 (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))) = (𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
281280ovmpt4g 7545 . . . . . . . . . . . 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 1392 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑗(𝑗𝑌, 𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))𝑖) = (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))
283278, 282eqtr2d 2800 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)) = (𝑗(𝐻f (.r𝐸)𝐷)𝑖))
284283mpteq2dva 5195 . . . . . . . . 9 ((𝜑𝑗𝑌) → (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗))) = (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖)))
285284oveq2d 7414 . . . . . . . 8 ((𝜑𝑗𝑌) → (𝐸 Σg (𝑖𝑋 ↦ (((𝐺𝑗)‘𝑖)(.r𝐸)(𝑖(.r𝐸)𝑗)))) = (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))
286267, 270, 2853eqtr3d 2807 . . . . . . 7 ((𝜑𝑗𝑌) → ((𝐿𝑗)( ·𝑠𝐵)𝑗) = (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))
287286mpteq2dva 5195 . . . . . 6 (𝜑 → (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗)) = (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖)))))
288287oveq2d 7414 . . . . 5 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐸 Σg (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))))
289 ringcmn 20334 . . . . . . 7 (𝐸 ∈ Ring → 𝐸 ∈ CMnd)
29069, 289syl 17 . . . . . 6 (𝜑𝐸 ∈ CMnd)
29169adantr 484 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝐸 ∈ Ring)
29238, 180eqsstrd 3972 . . . . . . . . . 10 (𝜑 → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
293292adantr 484 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘(Scalar‘𝐴)) ⊆ (Base‘𝐸))
294 simprl 780 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘(Scalar‘𝐴)))
295293, 294sseldd 3939 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑙 ∈ (Base‘𝐸))
296 simprr 782 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐴))
29712, 22srabase 21246 . . . . . . . . . 10 (𝜑 → (Base‘𝐸) = (Base‘𝐴))
298297adantr 484 . . . . . . . . 9 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (Base‘𝐸) = (Base‘𝐴))
299296, 298eleqtrrd 2867 . . . . . . . 8 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → 𝑘 ∈ (Base‘𝐸))
30020, 219ringcl 20302 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑙 ∈ (Base‘𝐸) ∧ 𝑘 ∈ (Base‘𝐸)) → (𝑙(.r𝐸)𝑘) ∈ (Base‘𝐸))
301291, 295, 299, 300syl3anc 1392 . . . . . . 7 ((𝜑 ∧ (𝑙 ∈ (Base‘(Scalar‘𝐴)) ∧ 𝑘 ∈ (Base‘𝐴))) → (𝑙(.r𝐸)𝑘) ∈ (Base‘𝐸))
30220, 219ringcl 20302 . . . . . . . . . . . 12 ((𝐸 ∈ Ring ∧ 𝑖 ∈ (Base‘𝐸) ∧ 𝑗 ∈ (Base‘𝐸)) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐸))
303232, 238, 247, 302syl3anc 1392 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐸))
304297ad2antrr 736 . . . . . . . . . . 11 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (Base‘𝐸) = (Base‘𝐴))
305303, 304eleqtrd 2866 . . . . . . . . . 10 (((𝜑𝑗𝑌) ∧ 𝑖𝑋) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
306305anasss 470 . . . . . . . . 9 ((𝜑 ∧ (𝑗𝑌𝑖𝑋)) → (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
307306ralrimivva 3207 . . . . . . . 8 (𝜑 → ∀𝑗𝑌𝑖𝑋 (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴))
308274fmpo 8051 . . . . . . . 8 (∀𝑗𝑌𝑖𝑋 (𝑖(.r𝐸)𝑗) ∈ (Base‘𝐴) ↔ 𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
309307, 308sylib 220 . . . . . . 7 (𝜑𝐷:(𝑌 × 𝑋)⟶(Base‘𝐴))
310 inidm 4180 . . . . . . 7 ((𝑌 × 𝑋) ∩ (𝑌 × 𝑋)) = (𝑌 × 𝑋)
311301, 65, 309, 48, 48, 310off 7680 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷):(𝑌 × 𝑋)⟶(Base‘𝐸))
31269adantr 484 . . . . . . . 8 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝐸 ∈ Ring)
313 simpr 488 . . . . . . . . 9 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐴))
314297adantr 484 . . . . . . . . 9 ((𝜑𝑢 ∈ (Base‘𝐴)) → (Base‘𝐸) = (Base‘𝐴))
315313, 314eleqtrrd 2867 . . . . . . . 8 ((𝜑𝑢 ∈ (Base‘𝐴)) → 𝑢 ∈ (Base‘𝐸))
31620, 219, 71ringlz 20345 . . . . . . . 8 ((𝐸 ∈ Ring ∧ 𝑢 ∈ (Base‘𝐸)) → ((0g𝐸)(.r𝐸)𝑢) = (0g𝐸))
317312, 315, 316syl2anc 593 . . . . . . 7 ((𝜑𝑢 ∈ (Base‘𝐴)) → ((0g𝐸)(.r𝐸)𝑢) = (0g𝐸))
31848, 73, 73, 65, 309, 194, 317offinsupp1 32930 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷) finSupp (0g𝐸))
31920, 71, 290, 46, 47, 311, 318gsumxp 20018 . . . . 5 (𝜑 → (𝐸 Σg (𝐻f (.r𝐸)𝐷)) = (𝐸 Σg (𝑗𝑌 ↦ (𝐸 Σg (𝑖𝑋 ↦ (𝑗(𝐻f (.r𝐸)𝐷)𝑖))))))
32012, 22sravsca 21250 . . . . . . . 8 (𝜑 → (.r𝐸) = ( ·𝑠𝐴))
321320ofeqd 7664 . . . . . . 7 (𝜑 → ∘f (.r𝐸) = ∘f ( ·𝑠𝐴))
322321oveqd 7415 . . . . . 6 (𝜑 → (𝐻f (.r𝐸)𝐷) = (𝐻f ( ·𝑠𝐴)𝐷))
323322oveq2d 7414 . . . . 5 (𝜑 → (𝐸 Σg (𝐻f (.r𝐸)𝐷)) = (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
324288, 319, 3233eqtr2rd 2806 . . . 4 (𝜑 → (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)) = (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))))
325 ovexd 7433 . . . . 5 (𝜑 → (𝐻f ( ·𝑠𝐴)𝐷) ∈ V)
326 fedgmullem1.a . . . . . 6 (𝜑𝑍 ∈ (Base‘𝐴))
327326elfvexd 6905 . . . . 5 (𝜑𝐴 ∈ V)
32811, 325, 67, 327, 22gsumsra 33229 . . . 4 (𝜑 → (𝐸 Σg (𝐻f ( ·𝑠𝐴)𝐷)) = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
329324, 328eqtr3d 2801 . . 3 (𝜑 → (𝐸 Σg (𝑗𝑌 ↦ ((𝐿𝑗)( ·𝑠𝐵)𝑗))) = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
330198, 199, 3293eqtr2d 2805 . 2 (𝜑𝑍 = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷)))
331197, 330jca 519 1 (𝜑 → (𝐻 finSupp (0g‘(Scalar‘𝐴)) ∧ 𝑍 = (𝐴 Σg (𝐻f ( ·𝑠𝐴)𝐷))))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 208  wa 399  w3a 1099   = wceq 1562  wcel 2144  wral 3078  Vcvv 3456  cdif 3903  wss 3906  {csn 4584   ciun 4951   class class class wbr 5102  cmpt 5183   × cxp 5647  Fun wfun 6517  wf 6519  cfv 6523  (class class class)co 7398  cmpo 7400  f cof 7660   supp csupp 8142  m cmap 8810  Fincfn 8929   finSupp cfsupp 9309  Basecbs 17247  s cress 17268  .rcmulr 17289  Scalarcsca 17291   ·𝑠 cvsca 17292  0gc0g 17470   Σg cgsu 17471  SubMndcsubmnd 18818  Grpcgrp 18977  SubGrpcsubg 19164  CMndccmn 19822  Ringcrg 20285  SubRingcsubrg 20621  DivRingcdr 20781  LModclmod 20929  LSpanclspn 21040  LBasisclbs 21143  LVecclvec 21171  subringAlg csra 21240  LIndSclinds 21859
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1817  ax-4 1831  ax-5 1932  ax-6 1989  ax-7 2030  ax-8 2146  ax-9 2154  ax-10 2177  ax-11 2193  ax-12 2214  ax-ext 2736  ax-rep 5229  ax-sep 5248  ax-nul 5258  ax-pow 5324  ax-pr 5392  ax-un 7720  ax-cnex 11131  ax-resscn 11132  ax-1cn 11133  ax-icn 11134  ax-addcl 11135  ax-addrcl 11136  ax-mulcl 11137  ax-mulrcl 11138  ax-mulcom 11139  ax-addass 11140  ax-mulass 11141  ax-distr 11142  ax-i2m1 11143  ax-1ne0 11144  ax-1rid 11145  ax-rnegex 11146  ax-rrecex 11147  ax-cnre 11148  ax-pre-lttri 11149  ax-pre-lttrn 11150  ax-pre-ltadd 11151  ax-pre-mulgt0 11152
This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3or 1100  df-3an 1101  df-tru 1565  df-fal 1575  df-ex 1802  df-nf 1806  df-sb 2093  df-mo 2568  df-eu 2598  df-clab 2743  df-cleq 2756  df-clel 2839  df-nfc 2913  df-ne 2960  df-nel 3064  df-ral 3079  df-rex 3089  df-rmo 3369  df-reu 3370  df-rab 3417  df-v 3458  df-sbc 3747  df-csb 3855  df-dif 3909  df-un 3911  df-in 3913  df-ss 3923  df-pss 3926  df-nul 4288  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 5103  df-opab 5165  df-mpt 5184  df-tr 5210  df-id 5544  df-eprel 5549  df-po 5557  df-so 5558  df-fr 5602  df-se 5603  df-we 5604  df-xp 5655  df-rel 5656  df-cnv 5657  df-co 5658  df-dm 5659  df-rn 5660  df-res 5661  df-ima 5662  df-pred 6290  df-ord 6351  df-on 6352  df-lim 6353  df-suc 6354  df-iota 6479  df-fun 6525  df-fn 6526  df-f 6527  df-f1 6528  df-fo 6529  df-f1o 6530  df-fv 6531  df-isom 6532  df-riota 7355  df-ov 7401  df-oprab 7402  df-mpo 7403  df-of 7662  df-om 7849  df-1st 7972  df-2nd 7973  df-supp 8143  df-frecs 8264  df-wrecs 8295  df-recs 8344  df-rdg 8383  df-1o 8439  df-2o 8440  df-er 8680  df-map 8812  df-ixp 8882  df-en 8930  df-dom 8931  df-sdom 8932  df-fin 8933  df-fsupp 9310  df-sup 9390  df-oi 9460  df-card 9899  df-pnf 11220  df-mnf 11221  df-xr 11222  df-ltxr 11223  df-le 11224  df-sub 11418  df-neg 11419  df-nn 12213  df-2 12282  df-3 12283  df-4 12284  df-5 12285  df-6 12286  df-7 12287  df-8 12288  df-9 12289  df-n0 12484  df-z 12571  df-dec 12691  df-uz 12842  df-fz 13515  df-fzo 13662  df-seq 14017  df-hash 14346  df-struct 17185  df-sets 17202  df-slot 17220  df-ndx 17232  df-base 17248  df-ress 17269  df-plusg 17301  df-mulr 17302  df-sca 17304  df-vsca 17305  df-ip 17306  df-tset 17307  df-ple 17308  df-ds 17310  df-hom 17312  df-cco 17313  df-0g 17472  df-gsum 17473  df-prds 17478  df-pws 17480  df-mre 17616  df-mrc 17617  df-acs 17619  df-mgm 18676  df-sgrp 18755  df-mnd 18771  df-mhm 18819  df-submnd 18820  df-grp 18980  df-minusg 18981  df-sbg 18982  df-mulg 19112  df-subg 19167  df-ghm 19256  df-cntz 19359  df-cmn 19824  df-abl 19825  df-mgp 20189  df-rng 20201  df-ur 20234  df-ring 20287  df-nzr 20565  df-subrg 20622  df-drng 20783  df-lmod 20931  df-lss 21001  df-lsp 21041  df-lmhm 21091  df-lbs 21144  df-lvec 21172  df-sra 21242  df-rgmod 21243  df-dsmm 21786  df-frlm 21801  df-uvc 21837  df-lindf 21860  df-linds 21861
This theorem is referenced by:  fedgmul  33930
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