Step | Hyp | Ref
| Expression |
1 | | simpl 483 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → 𝑁 ∈ ℕ) |
2 | | simpr2 1195 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁))) |
3 | | simpr1 1194 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁))) |
4 | | axsegcon 28174 |
. . 3
⊢ ((𝑁 ∈ ℕ ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁))) → ∃𝑟 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩)) |
5 | 1, 2, 3, 4 | syl3anc 1371 |
. 2
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → ∃𝑟 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩)) |
6 | | simpl23 1253 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) ∧ ((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) → 𝐶 ≠ 𝐷) |
7 | | simprl 769 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) ∧ ((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) → (𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩)) |
8 | | simprr 771 |
. . . . . . 7
⊢ (((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) ∧ ((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) → (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) |
9 | 6, 7, 8 | 3jca 1128 |
. . . . . 6
⊢ (((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) ∧ ((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) → (𝐶 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) |
10 | 9 | ex 413 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → (((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → (𝐶 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)))) |
11 | | simp1 1136 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ) |
12 | | simp22r 1293 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝐷 ∈ (𝔼‘𝑁)) |
13 | | simp21l 1290 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁)) |
14 | | simp21r 1291 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁)) |
15 | | simp22l 1292 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁)) |
16 | | simp3l 1201 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝑟 ∈ (𝔼‘𝑁)) |
17 | | simp3r 1202 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → 𝑠 ∈ (𝔼‘𝑁)) |
18 | | segconeq 34970 |
. . . . . 6
⊢ ((𝑁 ∈ ℕ ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → ((𝐶 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠)) |
19 | 11, 12, 13, 14, 15, 16, 17, 18 | syl133anc 1393 |
. . . . 5
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → ((𝐶 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠)) |
20 | 10, 19 | syld 47 |
. . . 4
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → (((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠)) |
21 | 20 | 3expa 1118 |
. . 3
⊢ (((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) ∧ (𝑟 ∈ (𝔼‘𝑁) ∧ 𝑠 ∈ (𝔼‘𝑁))) → (((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠)) |
22 | 21 | ralrimivva 3200 |
. 2
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → ∀𝑟 ∈ (𝔼‘𝑁)∀𝑠 ∈ (𝔼‘𝑁)(((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠)) |
23 | | opeq2 4873 |
. . . . 5
⊢ (𝑟 = 𝑠 → ⟨𝐶, 𝑟⟩ = ⟨𝐶, 𝑠⟩) |
24 | 23 | breq2d 5159 |
. . . 4
⊢ (𝑟 = 𝑠 → (𝐷 Btwn ⟨𝐶, 𝑟⟩ ↔ 𝐷 Btwn ⟨𝐶, 𝑠⟩)) |
25 | | opeq2 4873 |
. . . . 5
⊢ (𝑟 = 𝑠 → ⟨𝐷, 𝑟⟩ = ⟨𝐷, 𝑠⟩) |
26 | 25 | breq1d 5157 |
. . . 4
⊢ (𝑟 = 𝑠 → (⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩ ↔ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) |
27 | 24, 26 | anbi12d 631 |
. . 3
⊢ (𝑟 = 𝑠 → ((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ↔ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩))) |
28 | 27 | reu4 3726 |
. 2
⊢
(∃!𝑟 ∈
(𝔼‘𝑁)(𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ↔ (∃𝑟 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ ∀𝑟 ∈ (𝔼‘𝑁)∀𝑠 ∈ (𝔼‘𝑁)(((𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩) ∧ (𝐷 Btwn ⟨𝐶, 𝑠⟩ ∧ ⟨𝐷, 𝑠⟩Cgr⟨𝐴, 𝐵⟩)) → 𝑟 = 𝑠))) |
29 | 5, 22, 28 | sylanbrc 583 |
1
⊢ ((𝑁 ∈ ℕ ∧ ((𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ 𝐶 ≠ 𝐷)) → ∃!𝑟 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐶, 𝑟⟩ ∧ ⟨𝐷, 𝑟⟩Cgr⟨𝐴, 𝐵⟩)) |