Step |
Hyp |
Ref |
Expression |
1 |
|
mapdindp1.v |
⊢ 𝑉 = ( Base ‘ 𝑊 ) |
2 |
|
mapdindp1.p |
⊢ + = ( +g ‘ 𝑊 ) |
3 |
|
mapdindp1.o |
⊢ 0 = ( 0g ‘ 𝑊 ) |
4 |
|
mapdindp1.n |
⊢ 𝑁 = ( LSpan ‘ 𝑊 ) |
5 |
|
mapdindp1.w |
⊢ ( 𝜑 → 𝑊 ∈ LVec ) |
6 |
|
mapdindp1.x |
⊢ ( 𝜑 → 𝑋 ∈ ( 𝑉 ∖ { 0 } ) ) |
7 |
|
mapdindp1.y |
⊢ ( 𝜑 → 𝑌 ∈ ( 𝑉 ∖ { 0 } ) ) |
8 |
|
mapdindp1.z |
⊢ ( 𝜑 → 𝑍 ∈ ( 𝑉 ∖ { 0 } ) ) |
9 |
|
mapdindp1.W |
⊢ ( 𝜑 → 𝑤 ∈ ( 𝑉 ∖ { 0 } ) ) |
10 |
|
mapdindp1.e |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑌 } ) = ( 𝑁 ‘ { 𝑍 } ) ) |
11 |
|
mapdindp1.ne |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑋 } ) ≠ ( 𝑁 ‘ { 𝑌 } ) ) |
12 |
|
mapdindp1.f |
⊢ ( 𝜑 → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
13 |
|
preq2 |
⊢ ( ( 𝑌 + 𝑍 ) = 0 → { 𝑋 , ( 𝑌 + 𝑍 ) } = { 𝑋 , 0 } ) |
14 |
13
|
fveq2d |
⊢ ( ( 𝑌 + 𝑍 ) = 0 → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) = ( 𝑁 ‘ { 𝑋 , 0 } ) ) |
15 |
|
lveclmod |
⊢ ( 𝑊 ∈ LVec → 𝑊 ∈ LMod ) |
16 |
5 15
|
syl |
⊢ ( 𝜑 → 𝑊 ∈ LMod ) |
17 |
6
|
eldifad |
⊢ ( 𝜑 → 𝑋 ∈ 𝑉 ) |
18 |
1 3 4 16 17
|
lsppr0 |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑋 , 0 } ) = ( 𝑁 ‘ { 𝑋 } ) ) |
19 |
14 18
|
sylan9eqr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) = 0 ) → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) = ( 𝑁 ‘ { 𝑋 } ) ) |
20 |
7
|
eldifad |
⊢ ( 𝜑 → 𝑌 ∈ 𝑉 ) |
21 |
|
prssi |
⊢ ( ( 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉 ) → { 𝑋 , 𝑌 } ⊆ 𝑉 ) |
22 |
17 20 21
|
syl2anc |
⊢ ( 𝜑 → { 𝑋 , 𝑌 } ⊆ 𝑉 ) |
23 |
|
snsspr1 |
⊢ { 𝑋 } ⊆ { 𝑋 , 𝑌 } |
24 |
23
|
a1i |
⊢ ( 𝜑 → { 𝑋 } ⊆ { 𝑋 , 𝑌 } ) |
25 |
1 4
|
lspss |
⊢ ( ( 𝑊 ∈ LMod ∧ { 𝑋 , 𝑌 } ⊆ 𝑉 ∧ { 𝑋 } ⊆ { 𝑋 , 𝑌 } ) → ( 𝑁 ‘ { 𝑋 } ) ⊆ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
26 |
16 22 24 25
|
syl3anc |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑋 } ) ⊆ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
27 |
26
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) = 0 ) → ( 𝑁 ‘ { 𝑋 } ) ⊆ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
28 |
19 27
|
eqsstrd |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) = 0 ) → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) ⊆ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
29 |
12
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) = 0 ) → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
30 |
28 29
|
ssneldd |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) = 0 ) → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) ) |
31 |
12
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
32 |
5
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → 𝑊 ∈ LVec ) |
33 |
6
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → 𝑋 ∈ ( 𝑉 ∖ { 0 } ) ) |
34 |
7
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → 𝑌 ∈ ( 𝑉 ∖ { 0 } ) ) |
35 |
8
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → 𝑍 ∈ ( 𝑉 ∖ { 0 } ) ) |
36 |
9
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → 𝑤 ∈ ( 𝑉 ∖ { 0 } ) ) |
37 |
10
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { 𝑌 } ) = ( 𝑁 ‘ { 𝑍 } ) ) |
38 |
11
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { 𝑋 } ) ≠ ( 𝑁 ‘ { 𝑌 } ) ) |
39 |
|
simpr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑌 + 𝑍 ) ≠ 0 ) |
40 |
1 2 3 4 32 33 34 35 36 37 38 31 39
|
mapdindp0 |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { ( 𝑌 + 𝑍 ) } ) = ( 𝑁 ‘ { 𝑌 } ) ) |
41 |
40
|
oveq2d |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { ( 𝑌 + 𝑍 ) } ) ) = ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { 𝑌 } ) ) ) |
42 |
|
eqid |
⊢ ( LSSum ‘ 𝑊 ) = ( LSSum ‘ 𝑊 ) |
43 |
8
|
eldifad |
⊢ ( 𝜑 → 𝑍 ∈ 𝑉 ) |
44 |
1 2
|
lmodvacl |
⊢ ( ( 𝑊 ∈ LMod ∧ 𝑌 ∈ 𝑉 ∧ 𝑍 ∈ 𝑉 ) → ( 𝑌 + 𝑍 ) ∈ 𝑉 ) |
45 |
16 20 43 44
|
syl3anc |
⊢ ( 𝜑 → ( 𝑌 + 𝑍 ) ∈ 𝑉 ) |
46 |
1 4 42 16 17 45
|
lsmpr |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) = ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { ( 𝑌 + 𝑍 ) } ) ) ) |
47 |
46
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) = ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { ( 𝑌 + 𝑍 ) } ) ) ) |
48 |
1 4 42 16 17 20
|
lsmpr |
⊢ ( 𝜑 → ( 𝑁 ‘ { 𝑋 , 𝑌 } ) = ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { 𝑌 } ) ) ) |
49 |
48
|
adantr |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { 𝑋 , 𝑌 } ) = ( ( 𝑁 ‘ { 𝑋 } ) ( LSSum ‘ 𝑊 ) ( 𝑁 ‘ { 𝑌 } ) ) ) |
50 |
41 47 49
|
3eqtr4d |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) = ( 𝑁 ‘ { 𝑋 , 𝑌 } ) ) |
51 |
31 50
|
neleqtrrd |
⊢ ( ( 𝜑 ∧ ( 𝑌 + 𝑍 ) ≠ 0 ) → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) ) |
52 |
30 51
|
pm2.61dane |
⊢ ( 𝜑 → ¬ 𝑤 ∈ ( 𝑁 ‘ { 𝑋 , ( 𝑌 + 𝑍 ) } ) ) |