Metamath Proof Explorer


Theorem lincvalpr

Description: The linear combination over an unordered pair. (Contributed by AV, 16-Apr-2019)

Ref Expression
Hypotheses lincvalsn.b 𝐵 = ( Base ‘ 𝑀 )
lincvalsn.s 𝑆 = ( Scalar ‘ 𝑀 )
lincvalsn.r 𝑅 = ( Base ‘ 𝑆 )
lincvalsn.t · = ( ·𝑠𝑀 )
lincvalpr.p + = ( +g𝑀 )
lincvalpr.f 𝐹 = { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ }
Assertion lincvalpr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹 ( linC ‘ 𝑀 ) { 𝑉 , 𝑊 } ) = ( ( 𝑋 · 𝑉 ) + ( 𝑌 · 𝑊 ) ) )

Proof

Step Hyp Ref Expression
1 lincvalsn.b 𝐵 = ( Base ‘ 𝑀 )
2 lincvalsn.s 𝑆 = ( Scalar ‘ 𝑀 )
3 lincvalsn.r 𝑅 = ( Base ‘ 𝑆 )
4 lincvalsn.t · = ( ·𝑠𝑀 )
5 lincvalpr.p + = ( +g𝑀 )
6 lincvalpr.f 𝐹 = { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ }
7 simpl ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) → 𝑀 ∈ LMod )
8 7 3ad2ant1 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑀 ∈ LMod )
9 2 fveq2i ( Base ‘ 𝑆 ) = ( Base ‘ ( Scalar ‘ 𝑀 ) )
10 3 9 eqtri 𝑅 = ( Base ‘ ( Scalar ‘ 𝑀 ) )
11 10 eleq2i ( 𝑋𝑅𝑋 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) )
12 11 biimpi ( 𝑋𝑅𝑋 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) )
13 12 anim2i ( ( 𝑉𝐵𝑋𝑅 ) → ( 𝑉𝐵𝑋 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) )
14 13 3ad2ant2 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑉𝐵𝑋 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) )
15 10 eleq2i ( 𝑌𝑅𝑌 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) )
16 15 biimpi ( 𝑌𝑅𝑌 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) )
17 16 anim2i ( ( 𝑊𝐵𝑌𝑅 ) → ( 𝑊𝐵𝑌 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) )
18 17 3ad2ant3 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑊𝐵𝑌 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) )
19 fvexd ( 𝑀 ∈ LMod → ( Base ‘ ( Scalar ‘ 𝑀 ) ) ∈ V )
20 19 anim2i ( ( 𝑉𝑊𝑀 ∈ LMod ) → ( 𝑉𝑊 ∧ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ∈ V ) )
21 20 ancoms ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) → ( 𝑉𝑊 ∧ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ∈ V ) )
22 21 3ad2ant1 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑉𝑊 ∧ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ∈ V ) )
23 6 mapprop ( ( ( 𝑉𝐵𝑋 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) ∧ ( 𝑊𝐵𝑌 ∈ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ) ∧ ( 𝑉𝑊 ∧ ( Base ‘ ( Scalar ‘ 𝑀 ) ) ∈ V ) ) → 𝐹 ∈ ( ( Base ‘ ( Scalar ‘ 𝑀 ) ) ↑m { 𝑉 , 𝑊 } ) )
24 14 18 22 23 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝐹 ∈ ( ( Base ‘ ( Scalar ‘ 𝑀 ) ) ↑m { 𝑉 , 𝑊 } ) )
25 1 eleq2i ( 𝑉𝐵𝑉 ∈ ( Base ‘ 𝑀 ) )
26 25 birani ( ( 𝑉𝐵𝑋𝑅 ) → 𝑉 ∈ ( Base ‘ 𝑀 ) )
27 1 eleq2i ( 𝑊𝐵𝑊 ∈ ( Base ‘ 𝑀 ) )
28 27 birani ( ( 𝑊𝐵𝑌𝑅 ) → 𝑊 ∈ ( Base ‘ 𝑀 ) )
29 prelpwi ( ( 𝑉 ∈ ( Base ‘ 𝑀 ) ∧ 𝑊 ∈ ( Base ‘ 𝑀 ) ) → { 𝑉 , 𝑊 } ∈ 𝒫 ( Base ‘ 𝑀 ) )
30 26 28 29 syl2an ( ( ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → { 𝑉 , 𝑊 } ∈ 𝒫 ( Base ‘ 𝑀 ) )
31 30 3adant1 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → { 𝑉 , 𝑊 } ∈ 𝒫 ( Base ‘ 𝑀 ) )
32 lincval ( ( 𝑀 ∈ LMod ∧ 𝐹 ∈ ( ( Base ‘ ( Scalar ‘ 𝑀 ) ) ↑m { 𝑉 , 𝑊 } ) ∧ { 𝑉 , 𝑊 } ∈ 𝒫 ( Base ‘ 𝑀 ) ) → ( 𝐹 ( linC ‘ 𝑀 ) { 𝑉 , 𝑊 } ) = ( 𝑀 Σg ( 𝑣 ∈ { 𝑉 , 𝑊 } ↦ ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) ) ) )
33 8 24 31 32 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹 ( linC ‘ 𝑀 ) { 𝑉 , 𝑊 } ) = ( 𝑀 Σg ( 𝑣 ∈ { 𝑉 , 𝑊 } ↦ ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) ) ) )
34 lmodcmn ( 𝑀 ∈ LMod → 𝑀 ∈ CMnd )
35 34 adantr ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) → 𝑀 ∈ CMnd )
36 35 3ad2ant1 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑀 ∈ CMnd )
37 simpr ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) → 𝑉𝑊 )
38 simpl ( ( 𝑉𝐵𝑋𝑅 ) → 𝑉𝐵 )
39 simpl ( ( 𝑊𝐵𝑌𝑅 ) → 𝑊𝐵 )
40 37 38 39 3anim123i ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑉𝑊𝑉𝐵𝑊𝐵 ) )
41 3anrot ( ( 𝑉𝑊𝑉𝐵𝑊𝐵 ) ↔ ( 𝑉𝐵𝑊𝐵𝑉𝑊 ) )
42 40 41 sylib ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑉𝐵𝑊𝐵𝑉𝑊 ) )
43 6 a1i ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → 𝐹 = { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } )
44 43 fveq1d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( 𝐹𝑉 ) = ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑉 ) )
45 simprl ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → 𝑉𝐵 )
46 simprr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → 𝑋𝑅 )
47 37 adantr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → 𝑉𝑊 )
48 fvpr1g ( ( 𝑉𝐵𝑋𝑅𝑉𝑊 ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑉 ) = 𝑋 )
49 45 46 47 48 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑉 ) = 𝑋 )
50 44 49 eqtrd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( 𝐹𝑉 ) = 𝑋 )
51 50 oveq1d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) = ( 𝑋 ( ·𝑠𝑀 ) 𝑉 ) )
52 7 adantr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → 𝑀 ∈ LMod )
53 eqid ( ·𝑠𝑀 ) = ( ·𝑠𝑀 )
54 1 2 53 3 lmodvscl ( ( 𝑀 ∈ LMod ∧ 𝑋𝑅𝑉𝐵 ) → ( 𝑋 ( ·𝑠𝑀 ) 𝑉 ) ∈ 𝐵 )
55 52 46 45 54 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( 𝑋 ( ·𝑠𝑀 ) 𝑉 ) ∈ 𝐵 )
56 51 55 eqeltrd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ) → ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) ∈ 𝐵 )
57 56 3adant3 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) ∈ 𝐵 )
58 6 a1i ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝐹 = { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } )
59 58 fveq1d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹𝑊 ) = ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑊 ) )
60 simprl ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑊𝐵 )
61 simprr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑌𝑅 )
62 37 adantr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑉𝑊 )
63 fvpr2g ( ( 𝑊𝐵𝑌𝑅𝑉𝑊 ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑊 ) = 𝑌 )
64 60 61 62 63 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑊 ) = 𝑌 )
65 59 64 eqtrd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹𝑊 ) = 𝑌 )
66 65 oveq1d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) = ( 𝑌 ( ·𝑠𝑀 ) 𝑊 ) )
67 7 adantr ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑀 ∈ LMod )
68 1 2 53 3 lmodvscl ( ( 𝑀 ∈ LMod ∧ 𝑌𝑅𝑊𝐵 ) → ( 𝑌 ( ·𝑠𝑀 ) 𝑊 ) ∈ 𝐵 )
69 67 61 60 68 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑌 ( ·𝑠𝑀 ) 𝑊 ) ∈ 𝐵 )
70 66 69 eqeltrd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ∈ 𝐵 )
71 70 3adant2 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ∈ 𝐵 )
72 fveq2 ( 𝑣 = 𝑉 → ( 𝐹𝑣 ) = ( 𝐹𝑉 ) )
73 id ( 𝑣 = 𝑉𝑣 = 𝑉 )
74 72 73 oveq12d ( 𝑣 = 𝑉 → ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) = ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) )
75 fveq2 ( 𝑣 = 𝑊 → ( 𝐹𝑣 ) = ( 𝐹𝑊 ) )
76 id ( 𝑣 = 𝑊𝑣 = 𝑊 )
77 75 76 oveq12d ( 𝑣 = 𝑊 → ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) = ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) )
78 1 5 74 77 gsumpr ( ( 𝑀 ∈ CMnd ∧ ( 𝑉𝐵𝑊𝐵𝑉𝑊 ) ∧ ( ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) ∈ 𝐵 ∧ ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ∈ 𝐵 ) ) → ( 𝑀 Σg ( 𝑣 ∈ { 𝑉 , 𝑊 } ↦ ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) ) ) = ( ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) + ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ) )
79 36 42 57 71 78 syl112anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝑀 Σg ( 𝑣 ∈ { 𝑉 , 𝑊 } ↦ ( ( 𝐹𝑣 ) ( ·𝑠𝑀 ) 𝑣 ) ) ) = ( ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) + ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ) )
80 4 a1i ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → · = ( ·𝑠𝑀 ) )
81 80 eqcomd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ·𝑠𝑀 ) = · )
82 6 fveq1i ( 𝐹𝑉 ) = ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑉 )
83 38 3ad2ant2 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑉𝐵 )
84 simpr ( ( 𝑉𝐵𝑋𝑅 ) → 𝑋𝑅 )
85 84 3ad2ant2 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑋𝑅 )
86 37 3ad2ant1 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑉𝑊 )
87 83 85 86 48 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑉 ) = 𝑋 )
88 82 87 eqtrid ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹𝑉 ) = 𝑋 )
89 eqidd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑉 = 𝑉 )
90 81 88 89 oveq123d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) = ( 𝑋 · 𝑉 ) )
91 6 fveq1i ( 𝐹𝑊 ) = ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑊 )
92 39 3ad2ant3 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑊𝐵 )
93 simpr ( ( 𝑊𝐵𝑌𝑅 ) → 𝑌𝑅 )
94 93 3ad2ant3 ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑌𝑅 )
95 92 94 86 63 syl3anc ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( { ⟨ 𝑉 , 𝑋 ⟩ , ⟨ 𝑊 , 𝑌 ⟩ } ‘ 𝑊 ) = 𝑌 )
96 91 95 eqtrid ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹𝑊 ) = 𝑌 )
97 eqidd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → 𝑊 = 𝑊 )
98 81 96 97 oveq123d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) = ( 𝑌 · 𝑊 ) )
99 90 98 oveq12d ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( ( ( 𝐹𝑉 ) ( ·𝑠𝑀 ) 𝑉 ) + ( ( 𝐹𝑊 ) ( ·𝑠𝑀 ) 𝑊 ) ) = ( ( 𝑋 · 𝑉 ) + ( 𝑌 · 𝑊 ) ) )
100 33 79 99 3eqtrd ( ( ( 𝑀 ∈ LMod ∧ 𝑉𝑊 ) ∧ ( 𝑉𝐵𝑋𝑅 ) ∧ ( 𝑊𝐵𝑌𝑅 ) ) → ( 𝐹 ( linC ‘ 𝑀 ) { 𝑉 , 𝑊 } ) = ( ( 𝑋 · 𝑉 ) + ( 𝑌 · 𝑊 ) ) )