Metamath Proof Explorer


Theorem h1de2bi

Description: Membership in 1-dimensional subspace. All members are collinear with the generating vector. (Contributed by NM, 19-Jul-2001) (Revised by Mario Carneiro, 15-May-2014) (New usage is discouraged.)

Ref Expression
Hypotheses h1de2.1 ⊢ 𝐴 ∈ ℋ
h1de2.2 ⊢ 𝐵 ∈ ℋ
Assertion h1de2bi ( 𝐵 ≠ 0ℎ → ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ↔ 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ) )

Proof

Step Hyp Ref Expression
1 h1de2.1 ⊢ 𝐴 ∈ ℋ
2 h1de2.2 ⊢ 𝐵 ∈ ℋ
3 his6 ⊢ ( 𝐵 ∈ ℋ → ( ( 𝐵 ·ih 𝐵 ) = 0 ↔ 𝐵 = 0ℎ ) )
4 2 3 ax-mp ⊢ ( ( 𝐵 ·ih 𝐵 ) = 0 ↔ 𝐵 = 0ℎ )
5 4 necon3bii ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ↔ 𝐵 ≠ 0ℎ )
6 1 2 h1de2i ⊢ ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) → ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) = ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) )
7 6 adantl ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) = ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) )
8 7 oveq2d ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) )
9 2 2 hicli ⊢ ( 𝐵 ·ih 𝐵 ) ∈ ℂ
10 9 recclzi ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ )
11 ax-hvmulass ⊢ ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ ∧ ( 𝐵 ·ih 𝐵 ) ∈ ℂ ∧ 𝐴 ∈ ℋ ) → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐴 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) )
12 9 1 11 mp3an23 ⊢ ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐴 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) )
13 10 12 syl ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐴 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) )
14 ax-1cn ⊢ 1 ∈ ℂ
15 14 9 divcan1zi ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐵 ·ih 𝐵 ) ) = 1 )
16 15 oveq1d ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐴 ) = ( 1 ·ℎ 𝐴 ) )
17 13 16 eqtr3d ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) = ( 1 ·ℎ 𝐴 ) )
18 ax-hvmulid ⊢ ( 𝐴 ∈ ℋ → ( 1 ·ℎ 𝐴 ) = 𝐴 )
19 1 18 ax-mp ⊢ ( 1 ·ℎ 𝐴 ) = 𝐴
20 17 19 eqtrdi ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) = 𝐴 )
21 20 adantr ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐵 ·ih 𝐵 ) ·ℎ 𝐴 ) ) = 𝐴 )
22 8 21 eqtr3d ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) = 𝐴 )
23 1 2 hicli ⊢ ( 𝐴 ·ih 𝐵 ) ∈ ℂ
24 ax-hvmulass ⊢ ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ ∧ ( 𝐴 ·ih 𝐵 ) ∈ ℂ ∧ 𝐵 ∈ ℋ ) → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) ·ℎ 𝐵 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) )
25 23 2 24 mp3an23 ⊢ ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) ·ℎ 𝐵 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) )
26 10 25 syl ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) ·ℎ 𝐵 ) = ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) )
27 mulcom ⊢ ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ ∧ ( 𝐴 ·ih 𝐵 ) ∈ ℂ ) → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) = ( ( 𝐴 ·ih 𝐵 ) · ( 1 / ( 𝐵 ·ih 𝐵 ) ) ) )
28 10 23 27 sylancl ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) = ( ( 𝐴 ·ih 𝐵 ) · ( 1 / ( 𝐵 ·ih 𝐵 ) ) ) )
29 23 9 divreczi ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) = ( ( 𝐴 ·ih 𝐵 ) · ( 1 / ( 𝐵 ·ih 𝐵 ) ) ) )
30 28 29 eqtr4d ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) = ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) )
31 30 oveq1d ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) · ( 𝐴 ·ih 𝐵 ) ) ·ℎ 𝐵 ) = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) )
32 26 31 eqtr3d ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) )
33 32 adantr ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( 1 / ( 𝐵 ·ih 𝐵 ) ) ·ℎ ( ( 𝐴 ·ih 𝐵 ) ·ℎ 𝐵 ) ) = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) )
34 22 33 eqtr3d ⊢ ( ( ( 𝐵 ·ih 𝐵 ) ≠ 0 ∧ 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) )
35 34 ex ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) → 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ) )
36 23 9 divclzi ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ )
37 2 elexi ⊢ 𝐵 ∈ V
38 37 snss ⊢ ( 𝐵 ∈ ℋ ↔ { 𝐵 } ⊆ ℋ )
39 2 38 mpbi ⊢ { 𝐵 } ⊆ ℋ
40 occl ⊢ ( { 𝐵 } ⊆ ℋ → ( ⊥ ‘ { 𝐵 } ) ∈ Cℋ )
41 39 40 ax-mp ⊢ ( ⊥ ‘ { 𝐵 } ) ∈ Cℋ
42 41 choccli ⊢ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ∈ Cℋ
43 42 chshii ⊢ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ∈ Sℋ
44 h1did ⊢ ( 𝐵 ∈ ℋ → 𝐵 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) )
45 2 44 ax-mp ⊢ 𝐵 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) )
46 shmulcl ⊢ ( ( ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ∈ Sℋ ∧ ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ ∧ 𝐵 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) → ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) )
47 43 45 46 mp3an13 ⊢ ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ∈ ℂ → ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) )
48 36 47 syl ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) )
49 eleq1 ⊢ ( 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) → ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ↔ ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) )
50 48 49 syl5ibrcom ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) → 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ) )
51 35 50 impbid ⊢ ( ( 𝐵 ·ih 𝐵 ) ≠ 0 → ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ↔ 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ) )
52 5 51 sylbir ⊢ ( 𝐵 ≠ 0ℎ → ( 𝐴 ∈ ( ⊥ ‘ ( ⊥ ‘ { 𝐵 } ) ) ↔ 𝐴 = ( ( ( 𝐴 ·ih 𝐵 ) / ( 𝐵 ·ih 𝐵 ) ) ·ℎ 𝐵 ) ) )