outsideofeq - Mathbox for Scott Fenton

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Theorem outsideofeq 35782

Description: Uniqueness law for OutsideOf. Analogue of segconeq 35662. (Contributed by Scott Fenton, 24-Oct-2013.) (Revised by Mario Carneiro, 19-Apr-2014.)

**Assertion**
Ref	Expression
outsideofeq	⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))

**Proof of Theorem outsideofeq**
Step	Hyp	Ref	Expression
1		simp1 1133	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
2		simp21 1203	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁))
3		simp32 1207	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑋 ∈ (𝔼‘𝑁))
4		simp22 1204	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑅 ∈ (𝔼‘𝑁))
5		broutsideof2 35774	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑋, 𝑅⟩ ↔ (𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))))
6	1, 2, 3, 4, 5	syl13anc 1369	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑋, 𝑅⟩ ↔ (𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))))
7	6	anbi1d 629	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ↔ ((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩)))
8		simp33 1208	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝑌 ∈ (𝔼‘𝑁))
9		broutsideof2 35774	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑌, 𝑅⟩ ↔ (𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))))
10	1, 2, 8, 4, 9	syl13anc 1369	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (𝐴OutsideOf⟨𝑌, 𝑅⟩ ↔ (𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))))
11	10	anbi1d 629	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩) ↔ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)))
12	7, 11	anbi12d 630	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) ↔ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))))
13		simpll3 1211	. . . . . . 7 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩))
14		simprl3 1217	. . . . . . 7 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩))
15	13, 14	jca 510	. . . . . 6 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)))
16	15	adantl 480	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)))
17		simpll2 1210	. . . . . 6 ⊢ ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑅 ≠ 𝐴)
18	17	adantl 480	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑅 ≠ 𝐴)
19		simp23 1205	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
20		simp31 1206	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
21		simprlr 778	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩)
22		simprrr 780	. . . . . 6 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)
23	1, 2, 3, 2, 8, 19, 20, 21, 22	cgrtr3and 35647	. . . . 5 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
24	16, 18, 23	jca32 514	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)))
25		simprll 777	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑅⟩)
26		simprlr 778	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑅⟩)
27		simprrr 780	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
28		midofsegid 35756	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁)) ∧ (𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
29	1, 2, 4, 3, 8, 28	syl122anc 1376	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
30	29	adantr 479	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌))
31	25, 26, 27, 30	mp3and 1460	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
32	31	exp32 419	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
33		simprlr 778	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑅⟩)
34		simprll 777	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑋⟩)
35	1, 2, 8, 4, 3, 33, 34	btwnexchand 35678	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 Btwn ⟨𝐴, 𝑋⟩)
36		simprrr 780	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
37	1, 2, 3, 8, 35, 36	endofsegidand 35738	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
38	37	exp32 419	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑌 Btwn ⟨𝐴, 𝑅⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
39		simprll 777	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑅⟩)
40		simprlr 778	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑌⟩)
41	1, 2, 3, 4, 8, 39, 40	btwnexchand 35678	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 Btwn ⟨𝐴, 𝑌⟩)
42		simprrr 780	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
43	1, 2, 3, 2, 8, 42	cgrcomand 35643	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ⟨𝐴, 𝑌⟩Cgr⟨𝐴, 𝑋⟩)
44	1, 2, 8, 3, 41, 43	endofsegidand 35738	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑌 = 𝑋)
45	44	eqcomd 2731	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
46	45	exp32 419	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
47		simprr 771	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑋 Btwn ⟨𝐴, 𝑌⟩)
48		simplrr 776	. . . . . . . . . . . . 13 ⊢ ((((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
49	48	adantl 480	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
50	1, 2, 3, 2, 8, 49	cgrcomand 35643	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → ⟨𝐴, 𝑌⟩Cgr⟨𝐴, 𝑋⟩)
51	1, 2, 8, 3, 47, 50	endofsegidand 35738	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑌 = 𝑋)
52	51	eqcomd 2731	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑋 Btwn ⟨𝐴, 𝑌⟩)) → 𝑋 = 𝑌)
53	52	expr 455	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ → 𝑋 = 𝑌))
54		simprr 771	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → 𝑌 Btwn ⟨𝐴, 𝑋⟩)
55		simplrr 776	. . . . . . . . . . 11 ⊢ ((((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
56	55	adantl 480	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)
57	1, 2, 3, 8, 54, 56	endofsegidand 35738	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩)) ∧ 𝑌 Btwn ⟨𝐴, 𝑋⟩)) → 𝑋 = 𝑌)
58	57	expr 455	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑌 Btwn ⟨𝐴, 𝑋⟩ → 𝑋 = 𝑌))
59		simprrl 779	. . . . . . . . . 10 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 ≠ 𝐴)
60	59	necomd 2986	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝐴 ≠ 𝑅)
61		simprll 777	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑋⟩)
62		simprlr 778	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑅 Btwn ⟨𝐴, 𝑌⟩)
63		btwnconn1 35753	. . . . . . . . . . 11 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁)) ∧ (𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
64	1, 2, 4, 3, 8, 63	syl122anc 1376	. . . . . . . . . 10 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
65	64	adantr 479	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → ((𝐴 ≠ 𝑅 ∧ 𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩)))
66	60, 61, 62, 65	mp3and 1460	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → (𝑋 Btwn ⟨𝐴, 𝑌⟩ ∨ 𝑌 Btwn ⟨𝐴, 𝑋⟩))
67	53, 58, 66	mpjaod 858	. . . . . . 7 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
68	67	exp32 419	. . . . . 6 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((𝑅 Btwn ⟨𝐴, 𝑋⟩ ∧ 𝑅 Btwn ⟨𝐴, 𝑌⟩) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
69	32, 38, 46, 68	ccased 1036	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) → ((𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩) → 𝑋 = 𝑌)))
70	69	imp32 417	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩) ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ (𝑅 ≠ 𝐴 ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐴, 𝑌⟩))) → 𝑋 = 𝑌)
71	24, 70	syldan 589	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) ∧ (((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑋 = 𝑌)
72	71	ex 411	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → ((((𝑋 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑋 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑋⟩)) ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ ((𝑌 ≠ 𝐴 ∧ 𝑅 ≠ 𝐴 ∧ (𝑌 Btwn ⟨𝐴, 𝑅⟩ ∨ 𝑅 Btwn ⟨𝐴, 𝑌⟩)) ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))
73	12, 72	sylbid 239	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝑅 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁)) ∧ (𝐶 ∈ (𝔼‘𝑁) ∧ 𝑋 ∈ (𝔼‘𝑁) ∧ 𝑌 ∈ (𝔼‘𝑁))) → (((𝐴OutsideOf⟨𝑋, 𝑅⟩ ∧ ⟨𝐴, 𝑋⟩Cgr⟨𝐵, 𝐶⟩) ∧ (𝐴OutsideOf⟨𝑌, 𝑅⟩ ∧ ⟨𝐴, 𝑌⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑋 = 𝑌))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 394 ∨ wo 845 ∧ w3a 1084 = wceq 1533 ∈ wcel 2098 ≠ wne 2930 ⟨cop 4630 class class class wbr 5143 ‘cfv 6542 ℕcn 12240 𝔼cee 28741 Btwn cbtwn 28742 Cgrccgr 28743 OutsideOfcoutsideof 35771

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1789 ax-4 1803 ax-5 1905 ax-6 1963 ax-7 2003 ax-8 2100 ax-9 2108 ax-10 2129 ax-11 2146 ax-12 2166 ax-ext 2696 ax-rep 5280 ax-sep 5294 ax-nul 5301 ax-pow 5359 ax-pr 5423 ax-un 7737 ax-inf2 9662 ax-cnex 11192 ax-resscn 11193 ax-1cn 11194 ax-icn 11195 ax-addcl 11196 ax-addrcl 11197 ax-mulcl 11198 ax-mulrcl 11199 ax-mulcom 11200 ax-addass 11201 ax-mulass 11202 ax-distr 11203 ax-i2m1 11204 ax-1ne0 11205 ax-1rid 11206 ax-rnegex 11207 ax-rrecex 11208 ax-cnre 11209 ax-pre-lttri 11210 ax-pre-lttrn 11211 ax-pre-ltadd 11212 ax-pre-mulgt0 11213 ax-pre-sup 11214

This theorem depends on definitions: df-bi 206 df-an 395 df-or 846 df-3or 1085 df-3an 1086 df-tru 1536 df-fal 1546 df-ex 1774 df-nf 1778 df-sb 2060 df-mo 2528 df-eu 2557 df-clab 2703 df-cleq 2717 df-clel 2802 df-nfc 2877 df-ne 2931 df-nel 3037 df-ral 3052 df-rex 3061 df-rmo 3364 df-reu 3365 df-rab 3420 df-v 3465 df-sbc 3770 df-csb 3886 df-dif 3943 df-un 3945 df-in 3947 df-ss 3957 df-pss 3960 df-nul 4319 df-if 4525 df-pw 4600 df-sn 4625 df-pr 4627 df-op 4631 df-uni 4904 df-int 4945 df-iun 4993 df-br 5144 df-opab 5206 df-mpt 5227 df-tr 5261 df-id 5570 df-eprel 5576 df-po 5584 df-so 5585 df-fr 5627 df-se 5628 df-we 5629 df-xp 5678 df-rel 5679 df-cnv 5680 df-co 5681 df-dm 5682 df-rn 5683 df-res 5684 df-ima 5685 df-pred 6300 df-ord 6367 df-on 6368 df-lim 6369 df-suc 6370 df-iota 6494 df-fun 6544 df-fn 6545 df-f 6546 df-f1 6547 df-fo 6548 df-f1o 6549 df-fv 6550 df-isom 6551 df-riota 7371 df-ov 7418 df-oprab 7419 df-mpo 7420 df-om 7868 df-1st 7989 df-2nd 7990 df-frecs 8283 df-wrecs 8314 df-recs 8388 df-rdg 8427 df-1o 8483 df-er 8721 df-map 8843 df-en 8961 df-dom 8962 df-sdom 8963 df-fin 8964 df-sup 9463 df-oi 9531 df-card 9960 df-pnf 11278 df-mnf 11279 df-xr 11280 df-ltxr 11281 df-le 11282 df-sub 11474 df-neg 11475 df-div 11900 df-nn 12241 df-2 12303 df-3 12304 df-n0 12501 df-z 12587 df-uz 12851 df-rp 13005 df-ico 13360 df-icc 13361 df-fz 13515 df-fzo 13658 df-seq 13997 df-exp 14057 df-hash 14320 df-cj 15076 df-re 15077 df-im 15078 df-sqrt 15212 df-abs 15213 df-clim 15462 df-sum 15663 df-ee 28744 df-btwn 28745 df-cgr 28746 df-ofs 35635 df-colinear 35691 df-ifs 35692 df-cgr3 35693 df-fs 35694 df-outsideof 35772

This theorem is referenced by: outsideofeu 35783 outsidele 35784

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