| Step |
Hyp |
Ref |
Expression |
| 1 |
|
prproropf1o.o |
⊢ 𝑂 = ( 𝑅 ∩ ( 𝑉 × 𝑉 ) ) |
| 2 |
|
prproropf1o.p |
⊢ 𝑃 = { 𝑝 ∈ 𝒫 𝑉 ∣ ( ♯ ‘ 𝑝 ) = 2 } |
| 3 |
|
prproropf1o.f |
⊢ 𝐹 = ( 𝑝 ∈ 𝑃 ↦ 〈 inf ( 𝑝 , 𝑉 , 𝑅 ) , sup ( 𝑝 , 𝑉 , 𝑅 ) 〉 ) |
| 4 |
|
infeq1 |
⊢ ( 𝑝 = { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } → inf ( 𝑝 , 𝑉 , 𝑅 ) = inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) ) |
| 5 |
|
supeq1 |
⊢ ( 𝑝 = { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } → sup ( 𝑝 , 𝑉 , 𝑅 ) = sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) ) |
| 6 |
4 5
|
opeq12d |
⊢ ( 𝑝 = { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } → 〈 inf ( 𝑝 , 𝑉 , 𝑅 ) , sup ( 𝑝 , 𝑉 , 𝑅 ) 〉 = 〈 inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) , sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) 〉 ) |
| 7 |
1
|
prproropf1olem0 |
⊢ ( 𝑊 ∈ 𝑂 ↔ ( 𝑊 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ∧ ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) |
| 8 |
|
simpl |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → 𝑅 Or 𝑉 ) |
| 9 |
|
simprll |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → ( 1st ‘ 𝑊 ) ∈ 𝑉 ) |
| 10 |
|
simprlr |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) |
| 11 |
|
infpr |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) → inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = if ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) ) |
| 12 |
8 9 10 11
|
syl3anc |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = if ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) ) |
| 13 |
|
iftrue |
⊢ ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) → if ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) = ( 1st ‘ 𝑊 ) ) |
| 14 |
13
|
ad2antll |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → if ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) = ( 1st ‘ 𝑊 ) ) |
| 15 |
12 14
|
eqtrd |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = ( 1st ‘ 𝑊 ) ) |
| 16 |
|
suppr |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) → sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = if ( ( 2nd ‘ 𝑊 ) 𝑅 ( 1st ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) ) |
| 17 |
8 9 10 16
|
syl3anc |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = if ( ( 2nd ‘ 𝑊 ) 𝑅 ( 1st ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) ) |
| 18 |
|
soasym |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ) → ( ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) → ¬ ( 2nd ‘ 𝑊 ) 𝑅 ( 1st ‘ 𝑊 ) ) ) |
| 19 |
18
|
impr |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → ¬ ( 2nd ‘ 𝑊 ) 𝑅 ( 1st ‘ 𝑊 ) ) |
| 20 |
19
|
iffalsed |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → if ( ( 2nd ‘ 𝑊 ) 𝑅 ( 1st ‘ 𝑊 ) , ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) ) = ( 2nd ‘ 𝑊 ) ) |
| 21 |
17 20
|
eqtrd |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) = ( 2nd ‘ 𝑊 ) ) |
| 22 |
15 21
|
opeq12d |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → 〈 inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) , sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) 〉 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ) |
| 23 |
22
|
3adantr1 |
⊢ ( ( 𝑅 Or 𝑉 ∧ ( 𝑊 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ∧ ( ( 1st ‘ 𝑊 ) ∈ 𝑉 ∧ ( 2nd ‘ 𝑊 ) ∈ 𝑉 ) ∧ ( 1st ‘ 𝑊 ) 𝑅 ( 2nd ‘ 𝑊 ) ) ) → 〈 inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) , sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) 〉 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ) |
| 24 |
7 23
|
sylan2b |
⊢ ( ( 𝑅 Or 𝑉 ∧ 𝑊 ∈ 𝑂 ) → 〈 inf ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) , sup ( { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } , 𝑉 , 𝑅 ) 〉 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ) |
| 25 |
6 24
|
sylan9eqr |
⊢ ( ( ( 𝑅 Or 𝑉 ∧ 𝑊 ∈ 𝑂 ) ∧ 𝑝 = { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } ) → 〈 inf ( 𝑝 , 𝑉 , 𝑅 ) , sup ( 𝑝 , 𝑉 , 𝑅 ) 〉 = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ) |
| 26 |
1 2
|
prproropf1olem1 |
⊢ ( ( 𝑅 Or 𝑉 ∧ 𝑊 ∈ 𝑂 ) → { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } ∈ 𝑃 ) |
| 27 |
|
opex |
⊢ 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ∈ V |
| 28 |
27
|
a1i |
⊢ ( ( 𝑅 Or 𝑉 ∧ 𝑊 ∈ 𝑂 ) → 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ∈ V ) |
| 29 |
3 25 26 28
|
fvmptd2 |
⊢ ( ( 𝑅 Or 𝑉 ∧ 𝑊 ∈ 𝑂 ) → ( 𝐹 ‘ { ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) } ) = 〈 ( 1st ‘ 𝑊 ) , ( 2nd ‘ 𝑊 ) 〉 ) |