| Step |
Hyp |
Ref |
Expression |
| 1 |
|
rrx2line.i |
⊢ 𝐼 = ( 0 ..^ 2 ) |
| 2 |
|
rrx2line.e |
⊢ 𝐸 = ( ℝ^ ‘ 𝐼 ) |
| 3 |
|
rrx2line.b |
⊢ 𝑃 = ( ℝ ↑m 𝐼 ) |
| 4 |
|
rrx2line.l |
⊢ 𝐿 = ( LineM ‘ 𝐸 ) |
| 5 |
|
fveq1 |
⊢ ( 𝑋 = 𝑌 → ( 𝑋 ‘ 1 ) = ( 𝑌 ‘ 1 ) ) |
| 6 |
5
|
necon3i |
⊢ ( ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) → 𝑋 ≠ 𝑌 ) |
| 7 |
6
|
adantl |
⊢ ( ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) → 𝑋 ≠ 𝑌 ) |
| 8 |
1 2 3 4
|
rrx2line |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ 𝑋 ≠ 𝑌 ) → ( 𝑋 𝐿 𝑌 ) = { 𝑝 ∈ 𝑃 ∣ ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) } ) |
| 9 |
7 8
|
syl3an3 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑋 𝐿 𝑌 ) = { 𝑝 ∈ 𝑃 ∣ ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) } ) |
| 10 |
|
oveq2 |
⊢ ( ( 𝑌 ‘ 0 ) = ( 𝑋 ‘ 0 ) → ( 𝑡 · ( 𝑌 ‘ 0 ) ) = ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) |
| 11 |
10
|
oveq2d |
⊢ ( ( 𝑌 ‘ 0 ) = ( 𝑋 ‘ 0 ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 12 |
11
|
eqcoms |
⊢ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 13 |
12
|
adantr |
⊢ ( ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 14 |
13
|
3ad2ant3 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 15 |
14
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 16 |
15
|
adantr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) ) |
| 17 |
1 3
|
rrx2pxel |
⊢ ( 𝑋 ∈ 𝑃 → ( 𝑋 ‘ 0 ) ∈ ℝ ) |
| 18 |
17
|
recnd |
⊢ ( 𝑋 ∈ 𝑃 → ( 𝑋 ‘ 0 ) ∈ ℂ ) |
| 19 |
18
|
3ad2ant1 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑋 ‘ 0 ) ∈ ℂ ) |
| 20 |
19
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑋 ‘ 0 ) ∈ ℂ ) |
| 21 |
20
|
adantr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( 𝑋 ‘ 0 ) ∈ ℂ ) |
| 22 |
|
recn |
⊢ ( 𝑡 ∈ ℝ → 𝑡 ∈ ℂ ) |
| 23 |
22
|
adantl |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → 𝑡 ∈ ℂ ) |
| 24 |
21 23
|
affineid |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑋 ‘ 0 ) ) ) = ( 𝑋 ‘ 0 ) ) |
| 25 |
16 24
|
eqtrd |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) = ( 𝑋 ‘ 0 ) ) |
| 26 |
25
|
eqeq2d |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ↔ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) ) |
| 27 |
26
|
anbi1d |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ↔ ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ) ) |
| 28 |
27
|
rexbidva |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ↔ ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ) ) |
| 29 |
|
simpl |
⊢ ( ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) → ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) |
| 30 |
29
|
a1i |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ 𝑡 ∈ ℝ ) → ( ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) → ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) ) |
| 31 |
1 3
|
rrx2pyel |
⊢ ( 𝑝 ∈ 𝑃 → ( 𝑝 ‘ 1 ) ∈ ℝ ) |
| 32 |
31
|
adantl |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑝 ‘ 1 ) ∈ ℝ ) |
| 33 |
1 3
|
rrx2pyel |
⊢ ( 𝑋 ∈ 𝑃 → ( 𝑋 ‘ 1 ) ∈ ℝ ) |
| 34 |
33
|
3ad2ant1 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑋 ‘ 1 ) ∈ ℝ ) |
| 35 |
34
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑋 ‘ 1 ) ∈ ℝ ) |
| 36 |
32 35
|
resubcld |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℝ ) |
| 37 |
1 3
|
rrx2pyel |
⊢ ( 𝑌 ∈ 𝑃 → ( 𝑌 ‘ 1 ) ∈ ℝ ) |
| 38 |
37
|
3ad2ant2 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑌 ‘ 1 ) ∈ ℝ ) |
| 39 |
38 34
|
resubcld |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℝ ) |
| 40 |
39
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℝ ) |
| 41 |
37
|
recnd |
⊢ ( 𝑌 ∈ 𝑃 → ( 𝑌 ‘ 1 ) ∈ ℂ ) |
| 42 |
41
|
3ad2ant2 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑌 ‘ 1 ) ∈ ℂ ) |
| 43 |
33
|
recnd |
⊢ ( 𝑋 ∈ 𝑃 → ( 𝑋 ‘ 1 ) ∈ ℂ ) |
| 44 |
43
|
3ad2ant1 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑋 ‘ 1 ) ∈ ℂ ) |
| 45 |
|
simpr |
⊢ ( ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) → ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) |
| 46 |
45
|
necomd |
⊢ ( ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) → ( 𝑌 ‘ 1 ) ≠ ( 𝑋 ‘ 1 ) ) |
| 47 |
46
|
3ad2ant3 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑌 ‘ 1 ) ≠ ( 𝑋 ‘ 1 ) ) |
| 48 |
42 44 47
|
subne0d |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ≠ 0 ) |
| 49 |
48
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ≠ 0 ) |
| 50 |
36 40 49
|
redivcld |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ∈ ℝ ) |
| 51 |
50
|
adantr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ∈ ℝ ) |
| 52 |
|
simpr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) |
| 53 |
43
|
mullidd |
⊢ ( 𝑋 ∈ 𝑃 → ( 1 · ( 𝑋 ‘ 1 ) ) = ( 𝑋 ‘ 1 ) ) |
| 54 |
53
|
3ad2ant1 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 1 · ( 𝑋 ‘ 1 ) ) = ( 𝑋 ‘ 1 ) ) |
| 55 |
54
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 1 · ( 𝑋 ‘ 1 ) ) = ( 𝑋 ‘ 1 ) ) |
| 56 |
36
|
recnd |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℂ ) |
| 57 |
41
|
adantl |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ) → ( 𝑌 ‘ 1 ) ∈ ℂ ) |
| 58 |
43
|
adantr |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ) → ( 𝑋 ‘ 1 ) ∈ ℂ ) |
| 59 |
57 58
|
subcld |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℂ ) |
| 60 |
59
|
3adant3 |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℂ ) |
| 61 |
60
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ∈ ℂ ) |
| 62 |
56 61 49
|
divcan1d |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) = ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) |
| 63 |
55 62
|
oveq12d |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 1 · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) = ( ( 𝑋 ‘ 1 ) + ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) |
| 64 |
44
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑋 ‘ 1 ) ∈ ℂ ) |
| 65 |
31
|
recnd |
⊢ ( 𝑝 ∈ 𝑃 → ( 𝑝 ‘ 1 ) ∈ ℂ ) |
| 66 |
65
|
adantl |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑝 ‘ 1 ) ∈ ℂ ) |
| 67 |
64 66
|
pncan3d |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( 𝑋 ‘ 1 ) + ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) = ( 𝑝 ‘ 1 ) ) |
| 68 |
63 67
|
eqtr2d |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑝 ‘ 1 ) = ( ( 1 · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) ) |
| 69 |
68
|
adantr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( 𝑝 ‘ 1 ) = ( ( 1 · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) ) |
| 70 |
|
1cnd |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → 1 ∈ ℂ ) |
| 71 |
50
|
recnd |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ∈ ℂ ) |
| 72 |
42
|
adantr |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( 𝑌 ‘ 1 ) ∈ ℂ ) |
| 73 |
70 71 64 72
|
submuladdmuld |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) = ( ( 1 · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) ) |
| 74 |
73
|
adantr |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) = ( ( 1 · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) ) |
| 75 |
69 74
|
eqtr4d |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( 𝑝 ‘ 1 ) = ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) ) |
| 76 |
52 75
|
jca |
⊢ ( ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) ∧ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) → ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) ) ) |
| 77 |
|
oveq2 |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( 1 − 𝑡 ) = ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) ) |
| 78 |
77
|
oveq1d |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) = ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) ) |
| 79 |
|
oveq1 |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( 𝑡 · ( 𝑌 ‘ 1 ) ) = ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) |
| 80 |
78 79
|
oveq12d |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) = ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) ) |
| 81 |
80
|
eqeq2d |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ↔ ( 𝑝 ‘ 1 ) = ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) ) ) |
| 82 |
81
|
anbi2d |
⊢ ( 𝑡 = ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) → ( ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ↔ ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) ) · ( 𝑋 ‘ 1 ) ) + ( ( ( ( 𝑝 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) / ( ( 𝑌 ‘ 1 ) − ( 𝑋 ‘ 1 ) ) ) · ( 𝑌 ‘ 1 ) ) ) ) ) ) |
| 83 |
30 51 76 82
|
rspceb2dv |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ↔ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) ) |
| 84 |
28 83
|
bitrd |
⊢ ( ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) ∧ 𝑝 ∈ 𝑃 ) → ( ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) ↔ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) ) ) |
| 85 |
84
|
rabbidva |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → { 𝑝 ∈ 𝑃 ∣ ∃ 𝑡 ∈ ℝ ( ( 𝑝 ‘ 0 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 0 ) ) + ( 𝑡 · ( 𝑌 ‘ 0 ) ) ) ∧ ( 𝑝 ‘ 1 ) = ( ( ( 1 − 𝑡 ) · ( 𝑋 ‘ 1 ) ) + ( 𝑡 · ( 𝑌 ‘ 1 ) ) ) ) } = { 𝑝 ∈ 𝑃 ∣ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) } ) |
| 86 |
9 85
|
eqtrd |
⊢ ( ( 𝑋 ∈ 𝑃 ∧ 𝑌 ∈ 𝑃 ∧ ( ( 𝑋 ‘ 0 ) = ( 𝑌 ‘ 0 ) ∧ ( 𝑋 ‘ 1 ) ≠ ( 𝑌 ‘ 1 ) ) ) → ( 𝑋 𝐿 𝑌 ) = { 𝑝 ∈ 𝑃 ∣ ( 𝑝 ‘ 0 ) = ( 𝑋 ‘ 0 ) } ) |