Step |
Hyp |
Ref |
Expression |
1 |
|
simpl1 |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐴 ∈ ℤ ) |
2 |
|
simpl3l |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐶 ∈ ℤ ) |
3 |
|
simpl2 |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐵 ∈ ℤ ) |
4 |
|
simpl3r |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐴 ∥ 𝐶 ) |
5 |
|
simpr |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐴 ∥ 𝐵 ) |
6 |
|
dvds2add |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ ∧ 𝐵 ∈ ℤ ) → ( ( 𝐴 ∥ 𝐶 ∧ 𝐴 ∥ 𝐵 ) → 𝐴 ∥ ( 𝐶 + 𝐵 ) ) ) |
7 |
6
|
imp |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ ∧ 𝐵 ∈ ℤ ) ∧ ( 𝐴 ∥ 𝐶 ∧ 𝐴 ∥ 𝐵 ) ) → 𝐴 ∥ ( 𝐶 + 𝐵 ) ) |
8 |
1 2 3 4 5 7
|
syl32anc |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ 𝐵 ) → 𝐴 ∥ ( 𝐶 + 𝐵 ) ) |
9 |
|
simpl1 |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∈ ℤ ) |
10 |
|
simp3l |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) → 𝐶 ∈ ℤ ) |
11 |
|
simp2 |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) → 𝐵 ∈ ℤ ) |
12 |
|
zaddcl |
⊢ ( ( 𝐶 ∈ ℤ ∧ 𝐵 ∈ ℤ ) → ( 𝐶 + 𝐵 ) ∈ ℤ ) |
13 |
10 11 12
|
syl2anc |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) → ( 𝐶 + 𝐵 ) ∈ ℤ ) |
14 |
13
|
adantr |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → ( 𝐶 + 𝐵 ) ∈ ℤ ) |
15 |
10
|
znegcld |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) → - 𝐶 ∈ ℤ ) |
16 |
15
|
adantr |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → - 𝐶 ∈ ℤ ) |
17 |
|
simpr |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∥ ( 𝐶 + 𝐵 ) ) |
18 |
|
simpl3r |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∥ 𝐶 ) |
19 |
|
simpl3l |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐶 ∈ ℤ ) |
20 |
|
dvdsnegb |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( 𝐴 ∥ 𝐶 ↔ 𝐴 ∥ - 𝐶 ) ) |
21 |
9 19 20
|
syl2anc |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → ( 𝐴 ∥ 𝐶 ↔ 𝐴 ∥ - 𝐶 ) ) |
22 |
18 21
|
mpbid |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∥ - 𝐶 ) |
23 |
|
dvds2add |
⊢ ( ( 𝐴 ∈ ℤ ∧ ( 𝐶 + 𝐵 ) ∈ ℤ ∧ - 𝐶 ∈ ℤ ) → ( ( 𝐴 ∥ ( 𝐶 + 𝐵 ) ∧ 𝐴 ∥ - 𝐶 ) → 𝐴 ∥ ( ( 𝐶 + 𝐵 ) + - 𝐶 ) ) ) |
24 |
23
|
imp |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ ( 𝐶 + 𝐵 ) ∈ ℤ ∧ - 𝐶 ∈ ℤ ) ∧ ( 𝐴 ∥ ( 𝐶 + 𝐵 ) ∧ 𝐴 ∥ - 𝐶 ) ) → 𝐴 ∥ ( ( 𝐶 + 𝐵 ) + - 𝐶 ) ) |
25 |
9 14 16 17 22 24
|
syl32anc |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∥ ( ( 𝐶 + 𝐵 ) + - 𝐶 ) ) |
26 |
|
simpl2 |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐵 ∈ ℤ ) |
27 |
12
|
ancoms |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( 𝐶 + 𝐵 ) ∈ ℤ ) |
28 |
27
|
zcnd |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( 𝐶 + 𝐵 ) ∈ ℂ ) |
29 |
|
zcn |
⊢ ( 𝐶 ∈ ℤ → 𝐶 ∈ ℂ ) |
30 |
29
|
adantl |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → 𝐶 ∈ ℂ ) |
31 |
28 30
|
negsubd |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( ( 𝐶 + 𝐵 ) + - 𝐶 ) = ( ( 𝐶 + 𝐵 ) − 𝐶 ) ) |
32 |
|
zcn |
⊢ ( 𝐵 ∈ ℤ → 𝐵 ∈ ℂ ) |
33 |
32
|
adantr |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → 𝐵 ∈ ℂ ) |
34 |
30 33
|
pncan2d |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( ( 𝐶 + 𝐵 ) − 𝐶 ) = 𝐵 ) |
35 |
31 34
|
eqtrd |
⊢ ( ( 𝐵 ∈ ℤ ∧ 𝐶 ∈ ℤ ) → ( ( 𝐶 + 𝐵 ) + - 𝐶 ) = 𝐵 ) |
36 |
26 19 35
|
syl2anc |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → ( ( 𝐶 + 𝐵 ) + - 𝐶 ) = 𝐵 ) |
37 |
25 36
|
breqtrd |
⊢ ( ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) ∧ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) → 𝐴 ∥ 𝐵 ) |
38 |
8 37
|
impbida |
⊢ ( ( 𝐴 ∈ ℤ ∧ 𝐵 ∈ ℤ ∧ ( 𝐶 ∈ ℤ ∧ 𝐴 ∥ 𝐶 ) ) → ( 𝐴 ∥ 𝐵 ↔ 𝐴 ∥ ( 𝐶 + 𝐵 ) ) ) |