lineelsb2 - Mathbox for Scott Fenton

	Mathbox for Scott Fenton		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > Mathboxes > lineelsb2		Structured version Visualization version GIF version

Theorem lineelsb2 36124

Description: If 𝑆 lies on 𝑃𝑄, then 𝑃𝑄 = 𝑃𝑆. Theorem 6.16 of [Schwabhauser] p. 45. (Contributed by Scott Fenton, 27-Oct-2013.) (Revised by Mario Carneiro, 19-Apr-2014.)

**Assertion**
Ref	Expression
lineelsb2	⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) → (𝑃Line𝑄) = (𝑃Line𝑆)))

Proof of Theorem lineelsb2 Dummy variable 𝑥 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1192	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑁 ∈ ℕ)
2		simpl3l 1229	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑆 ∈ (𝔼‘𝑁))
3		simpl21 1252	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ∈ (𝔼‘𝑁))
4		simpl22 1253	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑄 ∈ (𝔼‘𝑁))
5		brcolinear 36035	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑆 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)))
6	1, 2, 3, 4, 5	syl13anc 1374	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑆 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)))
7	6	biimpa 476	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩))
8		simpr 484	. . . . . . . . . . . 12 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑥 ∈ (𝔼‘𝑁))
9		brcolinear 36035	. . . . . . . . . . . 12 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
10	1, 8, 3, 4, 9	syl13anc 1374	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
11	10	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
12		btwnconn3 36079	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → ((𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
13	1, 3, 2, 8, 4, 12	syl122anc 1381	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
14	13	imp 406	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
15		btwncolinear3 36047	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
16	1, 3, 8, 2, 15	syl13anc 1374	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
17		btwncolinear5 36049	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
18	1, 3, 2, 8, 17	syl13anc 1374	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
19	16, 18	jaod 859	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
20	19	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
21	14, 20	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
22	21	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
23		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
24	1, 2, 3, 4, 23	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑆 Btwn ⟨𝑄, 𝑃⟩)
25		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
26	1, 4, 2, 3, 8, 24, 25	btwnexch3and 35997	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
27		btwncolinear4 36048	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
28	1, 2, 8, 3, 27	syl13anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
29	28	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
30	26, 29	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
31	30	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
32		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
33		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
34	1, 4, 8, 3, 33	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
35	1, 3, 2, 4, 8, 32, 34	btwnexchand 36002	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
36	16	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
37	35, 36	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
38	37	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
39	22, 31, 38	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
40	11, 39	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
41		brcolinear 36035	. . . . . . . . . . . 12 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
42	1, 8, 3, 2, 41	syl13anc 1374	. . . . . . . . . . 11 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
43	42	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
44		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
45		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
46	1, 3, 8, 2, 4, 44, 45	btwnexchand 36002	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
47		btwncolinear5 36049	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
48	1, 3, 4, 8, 47	syl13anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
49	48	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
50	46, 49	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
51	50	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
52		simpl3r 1230	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ≠ 𝑆)
53	52	necomd 2980	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑆 ≠ 𝑃)
54	53	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 ≠ 𝑃)
55		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
56	1, 2, 3, 4, 55	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 Btwn ⟨𝑄, 𝑃⟩)
57		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
58		btwnouttr2 35998	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
59	1, 4, 2, 3, 8, 58	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
60	59	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑆 ≠ 𝑃 ∧ 𝑆 Btwn ⟨𝑄, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
61	54, 56, 57, 60	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
62		btwncolinear4 36048	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
63	1, 4, 8, 3, 62	syl13anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
64	63	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
65	61, 64	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
66	65	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
67	52	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑆)
68		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑄⟩)
69		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
70	1, 2, 8, 3, 69	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
71		btwnconn1 36077	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
72	1, 3, 2, 4, 8, 71	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
73	72	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑆 ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
74	67, 68, 70, 73	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
75		btwncolinear3 36047	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁))) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
76	1, 3, 8, 4, 75	syl13anc 1374	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
77	76, 48	jaod 859	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
78	77	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
79	74, 78	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
80	79	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
81	51, 66, 80	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
82	43, 81	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
83	40, 82	impbid 212	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Btwn ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
84	10	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
85		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
86	1, 8, 3, 4, 85	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑄, 𝑃⟩)
87		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
88	1, 4, 8, 3, 2, 86, 87	btwnexch3and 35997	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑃 Btwn ⟨𝑥, 𝑆⟩)
89		btwncolinear2 36046	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
90	1, 8, 2, 3, 89	syl13anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
91	90	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑃 Btwn ⟨𝑥, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
92	88, 91	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
93	92	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
94		simpl23 1254	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑃 ≠ 𝑄)
95	94	necomd 2980	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → 𝑄 ≠ 𝑃)
96	95	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 ≠ 𝑃)
97		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
98		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
99		btwnconn2 36078	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
100	1, 4, 3, 2, 8, 99	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
101	100	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑄 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
102	96, 97, 98, 101	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
103	19	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
104	102, 103	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
105	104	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
106	94	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑄)
107		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
108	1, 3, 4, 2, 107	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
109		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
110	1, 4, 8, 3, 109	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
111		btwnouttr 36000	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
112	1, 2, 3, 4, 8, 111	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
113	112	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑄 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
114	106, 108, 110, 113	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
115	28	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
116	114, 115	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
117	116	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
118	93, 105, 117	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
119	84, 118	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
120	42	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
121		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
122	1, 8, 3, 2, 121	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑆, 𝑃⟩)
123		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
124	1, 3, 4, 2, 123	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
125	1, 2, 8, 3, 4, 122, 124	btwnexch3and 35997	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑃 Btwn ⟨𝑥, 𝑄⟩)
126		btwncolinear2 36046	. . . . . . . . . . . . . . 15 ⊢ ((𝑁 ∈ ℕ ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁))) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
127	1, 8, 4, 3, 126	syl13anc 1374	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
128	127	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑃 Btwn ⟨𝑥, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
129	125, 128	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
130	129	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
131	53	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑆 ≠ 𝑃)
132		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
133	1, 3, 4, 2, 132	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑄⟩)
134		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
135		btwnconn2 36078	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
136	1, 2, 3, 4, 8, 135	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
137	136	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑆 ≠ 𝑃 ∧ 𝑃 Btwn ⟨𝑆, 𝑄⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
138	131, 133, 134, 137	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
139	77	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
140	138, 139	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
141	140	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
142	52	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑆)
143		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑆⟩)
144		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
145	1, 2, 8, 3, 144	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
146		btwnouttr 36000	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
147	1, 4, 3, 2, 8, 146	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
148	147	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑆 ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑃, 𝑥⟩) → 𝑃 Btwn ⟨𝑄, 𝑥⟩))
149	142, 143, 145, 148	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
150	63	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
151	149, 150	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑃 Btwn ⟨𝑄, 𝑆⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
152	151	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
153	130, 141, 152	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
154	120, 153	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
155	119, 154	impbid 212	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑃 Btwn ⟨𝑄, 𝑆⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
156	10	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩)))
157		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑄⟩)
158		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
159	1, 4, 2, 3, 158	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
160	1, 3, 8, 4, 2, 157, 159	btwnexchand 36002	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
161	18	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
162	160, 161	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑄⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
163	162	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Btwn ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
164	95	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 ≠ 𝑃)
165		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
166		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
167		btwnouttr2 35998	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
168	1, 2, 4, 3, 8, 167	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
169	168	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → ((𝑄 ≠ 𝑃 ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩) → 𝑃 Btwn ⟨𝑆, 𝑥⟩))
170	164, 165, 166, 169	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
171	28	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
172	170, 171	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑄, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
173	172	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
174	94	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑃 ≠ 𝑄)
175		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
176	1, 4, 2, 3, 175	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
177		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑥, 𝑃⟩)
178	1, 4, 8, 3, 177	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
179		btwnconn1 36077	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑥 ∈ (𝔼‘𝑁))) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
180	1, 3, 4, 2, 8, 179	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
181	180	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑃 ≠ 𝑄 ∧ 𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑄 Btwn ⟨𝑃, 𝑥⟩) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩)))
182	174, 176, 178, 181	mp3and 1466	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → (𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩))
183	19	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → ((𝑆 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
184	182, 183	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑄 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑆⟩)
185	184	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑄 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
186	163, 173, 185	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → ((𝑥 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑥⟩ ∨ 𝑄 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
187	156, 186	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ → 𝑥 Colinear ⟨𝑃, 𝑆⟩))
188	42	adantr 480	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ ↔ (𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩)))
189		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
190	1, 4, 2, 3, 189	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
191		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Btwn ⟨𝑃, 𝑆⟩)
192		btwnconn3 36079	. . . . . . . . . . . . . . . 16 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁)) ∧ (𝑥 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁))) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
193	1, 3, 4, 8, 2, 192	syl122anc 1381	. . . . . . . . . . . . . . 15 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
194	193	adantr 480	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑆⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩)))
195	190, 191, 194	mp2and 699	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩))
196	77	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → ((𝑄 Btwn ⟨𝑃, 𝑥⟩ ∨ 𝑥 Btwn ⟨𝑃, 𝑄⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
197	195, 196	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑥 Btwn ⟨𝑃, 𝑆⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
198	197	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Btwn ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
199		simprl 770	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
200		simprr 772	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑆, 𝑥⟩)
201	1, 2, 4, 3, 8, 199, 200	btwnexch3and 35997	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑃 Btwn ⟨𝑄, 𝑥⟩)
202	63	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → (𝑃 Btwn ⟨𝑄, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
203	201, 202	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑃 Btwn ⟨𝑆, 𝑥⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
204	203	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑃 Btwn ⟨𝑆, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
205		simprl 770	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑆, 𝑃⟩)
206	1, 4, 2, 3, 205	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑆⟩)
207		simprr 772	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑥, 𝑃⟩)
208	1, 2, 8, 3, 207	btwncomand 35991	. . . . . . . . . . . . . 14 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑆 Btwn ⟨𝑃, 𝑥⟩)
209	1, 3, 4, 2, 8, 206, 208	btwnexchand 36002	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑄 Btwn ⟨𝑃, 𝑥⟩)
210	76	adantr 480	. . . . . . . . . . . . 13 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → (𝑄 Btwn ⟨𝑃, 𝑥⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
211	209, 210	mpd 15	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑄 Btwn ⟨𝑆, 𝑃⟩ ∧ 𝑆 Btwn ⟨𝑥, 𝑃⟩)) → 𝑥 Colinear ⟨𝑃, 𝑄⟩)
212	211	expr 456	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑆 Btwn ⟨𝑥, 𝑃⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
213	198, 204, 212	3jaod 1431	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → ((𝑥 Btwn ⟨𝑃, 𝑆⟩ ∨ 𝑃 Btwn ⟨𝑆, 𝑥⟩ ∨ 𝑆 Btwn ⟨𝑥, 𝑃⟩) → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
214	188, 213	sylbid 240	. . . . . . . . 9 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑆⟩ → 𝑥 Colinear ⟨𝑃, 𝑄⟩))
215	187, 214	impbid 212	. . . . . . . 8 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑄 Btwn ⟨𝑆, 𝑃⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
216	83, 155, 215	3jaodan 1433	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 Btwn ⟨𝑃, 𝑄⟩ ∨ 𝑃 Btwn ⟨𝑄, 𝑆⟩ ∨ 𝑄 Btwn ⟨𝑆, 𝑃⟩)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
217	7, 216	syldan 591	. . . . . 6 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
218	217	adantrl 716	. . . . 5 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ 𝑥 ∈ (𝔼‘𝑁)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
219	218	an32s 652	. . . 4 ⊢ ((((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) ∧ 𝑥 ∈ (𝔼‘𝑁)) → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑥 Colinear ⟨𝑃, 𝑆⟩))
220	219	rabbidva 3403	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)) → {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
221	220	ex 412	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → ((𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩) → {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩}))
222		fvline2 36122	. . . . 5 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄)) → (𝑃Line𝑄) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩})
223	222	3adant3 1132	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑄) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩})
224	223	eleq2d 2814	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) ↔ 𝑆 ∈ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩}))
225		breq1 5098	. . . 4 ⊢ (𝑥 = 𝑆 → (𝑥 Colinear ⟨𝑃, 𝑄⟩ ↔ 𝑆 Colinear ⟨𝑃, 𝑄⟩))
226	225	elrab 3650	. . 3 ⊢ (𝑆 ∈ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} ↔ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩))
227	224, 226	bitrdi 287	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) ↔ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑆 Colinear ⟨𝑃, 𝑄⟩)))
228		simp1 1136	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑁 ∈ ℕ)
229		simp21 1207	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑃 ∈ (𝔼‘𝑁))
230		simp3l 1202	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑆 ∈ (𝔼‘𝑁))
231		simp3r 1203	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → 𝑃 ≠ 𝑆)
232		fvline2 36122	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑆) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
233	228, 229, 230, 231, 232	syl13anc 1374	. . 3 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑃Line𝑆) = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩})
234	223, 233	eqeq12d 2745	. 2 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → ((𝑃Line𝑄) = (𝑃Line𝑆) ↔ {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑄⟩} = {𝑥 ∈ (𝔼‘𝑁) ∣ 𝑥 Colinear ⟨𝑃, 𝑆⟩}))
235	221, 227, 234	3imtr4d 294	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝑃 ∈ (𝔼‘𝑁) ∧ 𝑄 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑄) ∧ (𝑆 ∈ (𝔼‘𝑁) ∧ 𝑃 ≠ 𝑆)) → (𝑆 ∈ (𝑃Line𝑄) → (𝑃Line𝑄) = (𝑃Line𝑆)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 ∨ wo 847 ∨ w3o 1085 ∧ w3a 1086 = wceq 1540 ∈ wcel 2109 ≠ wne 2925 {crab 3396 ⟨cop 4585 class class class wbr 5095 ‘cfv 6486 (class class class)co 7353 ℕcn 12146 𝔼cee 28851 Btwn cbtwn 28852 Colinear ccolin 36013 Linecline2 36110

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1795 ax-4 1809 ax-5 1910 ax-6 1967 ax-7 2008 ax-8 2111 ax-9 2119 ax-10 2142 ax-11 2158 ax-12 2178 ax-ext 2701 ax-rep 5221 ax-sep 5238 ax-nul 5248 ax-pow 5307 ax-pr 5374 ax-un 7675 ax-inf2 9556 ax-cnex 11084 ax-resscn 11085 ax-1cn 11086 ax-icn 11087 ax-addcl 11088 ax-addrcl 11089 ax-mulcl 11090 ax-mulrcl 11091 ax-mulcom 11092 ax-addass 11093 ax-mulass 11094 ax-distr 11095 ax-i2m1 11096 ax-1ne0 11097 ax-1rid 11098 ax-rnegex 11099 ax-rrecex 11100 ax-cnre 11101 ax-pre-lttri 11102 ax-pre-lttrn 11103 ax-pre-ltadd 11104 ax-pre-mulgt0 11105 ax-pre-sup 11106

This theorem depends on definitions: df-bi 207 df-an 396 df-or 848 df-3or 1087 df-3an 1088 df-tru 1543 df-fal 1553 df-ex 1780 df-nf 1784 df-sb 2066 df-mo 2533 df-eu 2562 df-clab 2708 df-cleq 2721 df-clel 2803 df-nfc 2878 df-ne 2926 df-nel 3030 df-ral 3045 df-rex 3054 df-rmo 3345 df-reu 3346 df-rab 3397 df-v 3440 df-sbc 3745 df-csb 3854 df-dif 3908 df-un 3910 df-in 3912 df-ss 3922 df-pss 3925 df-nul 4287 df-if 4479 df-pw 4555 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4862 df-int 4900 df-iun 4946 df-br 5096 df-opab 5158 df-mpt 5177 df-tr 5203 df-id 5518 df-eprel 5523 df-po 5531 df-so 5532 df-fr 5576 df-se 5577 df-we 5578 df-xp 5629 df-rel 5630 df-cnv 5631 df-co 5632 df-dm 5633 df-rn 5634 df-res 5635 df-ima 5636 df-pred 6253 df-ord 6314 df-on 6315 df-lim 6316 df-suc 6317 df-iota 6442 df-fun 6488 df-fn 6489 df-f 6490 df-f1 6491 df-fo 6492 df-f1o 6493 df-fv 6494 df-isom 6495 df-riota 7310 df-ov 7356 df-oprab 7357 df-mpo 7358 df-om 7807 df-1st 7931 df-2nd 7932 df-frecs 8221 df-wrecs 8252 df-recs 8301 df-rdg 8339 df-1o 8395 df-er 8632 df-ec 8634 df-map 8762 df-en 8880 df-dom 8881 df-sdom 8882 df-fin 8883 df-sup 9351 df-oi 9421 df-card 9854 df-pnf 11170 df-mnf 11171 df-xr 11172 df-ltxr 11173 df-le 11174 df-sub 11367 df-neg 11368 df-div 11796 df-nn 12147 df-2 12209 df-3 12210 df-n0 12403 df-z 12490 df-uz 12754 df-rp 12912 df-ico 13272 df-icc 13273 df-fz 13429 df-fzo 13576 df-seq 13927 df-exp 13987 df-hash 14256 df-cj 15024 df-re 15025 df-im 15026 df-sqrt 15160 df-abs 15161 df-clim 15413 df-sum 15612 df-ee 28854 df-btwn 28855 df-cgr 28856 df-ofs 35959 df-colinear 36015 df-ifs 36016 df-cgr3 36017 df-fs 36018 df-line2 36113

This theorem is referenced by: linethru 36129

W3C validator