cgrxfr - Mathbox for Scott Fenton

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Theorem cgrxfr 33043

Description: A line segment can be divided at the same place as a congruent line segment is divided. Theorem 4.5 of [Schwabhauser] p. 35. (Contributed by Scott Fenton, 4-Oct-2013.)

**Assertion**
Ref	Expression
cgrxfr	⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Distinct variable groups: 𝐴,𝑒 𝐵,𝑒 𝐶,𝑒 𝐷,𝑒 𝑒,𝐹 𝑒,𝑁

Proof of Theorem cgrxfr Dummy variables 𝑓 𝑔 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		simpl1 1171	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝑁 ∈ ℕ)
2		simpl3r 1209	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐹 ∈ (𝔼‘𝑁))
3		simpl3l 1208	. . . 4 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → 𝐷 ∈ (𝔼‘𝑁))
4		btwndiff 33015	. . . 4 ⊢ ((𝑁 ∈ ℕ ∧ 𝐹 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
5	1, 2, 3, 4	syl3anc 1351	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))
6		simpl1 1171	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑁 ∈ ℕ)
7		simpr 477	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝑔 ∈ (𝔼‘𝑁))
8		simpl3l 1208	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐷 ∈ (𝔼‘𝑁))
9		simpl21 1231	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐴 ∈ (𝔼‘𝑁))
10		simpl22 1232	. . . . . . . . 9 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → 𝐵 ∈ (𝔼‘𝑁))
11		axsegcon 26416	. . . . . . . . 9 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
12	6, 7, 8, 9, 10, 11	syl122anc 1359	. . . . . . . 8 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
13	12	adantr 473	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))
14		anass 461	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))))
15		simpl1 1171	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
16		simprl 758	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
17		simprr 760	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
18		simpl22 1232	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
19		simpl23 1233	. . . . . . . . . . . . . 14 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
20		axsegcon 26416	. . . . . . . . . . . . . 14 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ (𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
21	15, 16, 17, 18, 19, 20	syl122anc 1359	. . . . . . . . . . . . 13 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
22	21	adantr 473	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))
23		anass 461	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
24		df-3an 1070	. . . . . . . . . . . . . . . . 17 ⊢ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁)))
25	24	anbi2i 613	. . . . . . . . . . . . . . . 16 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ ((𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ 𝑓 ∈ (𝔼‘𝑁))))
26	23, 25	bitr4i 270	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ↔ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))))
27		simplrr 765	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 ≠ 𝑔)
28	27	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 ≠ 𝑔)
29	28	necomd 3022	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑔 ≠ 𝐷)
30		simpl1 1171	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑁 ∈ ℕ)
31		simpr1 1174	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑔 ∈ (𝔼‘𝑁))
32		simpl3l 1208	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐷 ∈ (𝔼‘𝑁))
33		simpr2 1175	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑒 ∈ (𝔼‘𝑁))
34		simpr3 1176	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝑓 ∈ (𝔼‘𝑁))
35		simprl 758	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
36	35	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑒⟩)
37		simprrl 768	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝑔, 𝑓⟩)
38	30, 31, 32, 33, 34, 36, 37	btwnexchand 33014	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝑓⟩)
39		simpl21 1231	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐴 ∈ (𝔼‘𝑁))
40		simpl22 1232	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐵 ∈ (𝔼‘𝑁))
41		simpl23 1233	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐶 ∈ (𝔼‘𝑁))
42	30, 31, 32, 33, 34, 36, 37	btwnexch3and 33009	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝑓⟩)
43		simplll 762	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
44	43	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐵 Btwn ⟨𝐴, 𝐶⟩)
45		simprr 760	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
46	45	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
47		simprrr 769	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)
48	30, 32, 33, 34, 39, 40, 41, 42, 44, 46, 47	cgrextendand 32997	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩)
49	38, 48	jca 504	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩))
50		simpl3r 1209	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → 𝐹 ∈ (𝔼‘𝑁))
51		simplrl 764	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
52	51	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝐹, 𝑔⟩)
53	30, 32, 50, 31, 52	btwncomand 33003	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝐷 Btwn ⟨𝑔, 𝐹⟩)
54		simpllr 763	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
55	54	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
56	30, 39, 41, 32, 50, 55	cgrcomand 32979	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)
57	53, 56	jca 504	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))
58	29, 49, 57	3jca 1108	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)))
59	58	ex 405	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩))))
60		segconeq 32998	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑁 ∈ ℕ ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐴 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
61	30, 32, 39, 41, 31, 34, 50, 60	syl133anc 1373	. . . . . . . . . . . . . . . . . . 19 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝑔 ≠ 𝐷 ∧ (𝐷 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝐷, 𝑓⟩Cgr⟨𝐴, 𝐶⟩) ∧ (𝐷 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝐷, 𝐹⟩Cgr⟨𝐴, 𝐶⟩)) → 𝑓 = 𝐹))
62	59, 61	syld 47	. . . . . . . . . . . . . . . . . 18 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑓 = 𝐹))
63	62	imp 398	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑓 = 𝐹)
64		opeq2 4678	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑔, 𝑓⟩ = ⟨𝑔, 𝐹⟩)
65	64	breq2d 4941	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝑔, 𝑓⟩ ↔ 𝑒 Btwn ⟨𝑔, 𝐹⟩))
66		opeq2 4678	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (𝑓 = 𝐹 → ⟨𝑒, 𝑓⟩ = ⟨𝑒, 𝐹⟩)
67	66	breq1d 4939	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ (𝑓 = 𝐹 → (⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩ ↔ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
68	65, 67	anbi12d 621	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (𝑓 = 𝐹 → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) ↔ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)))
69	68	biimpa 469	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))
70		simpl 475	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → 𝑒 Btwn ⟨𝑔, 𝐹⟩)
71		btwnexch3 33008	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝐷 ∈ (𝔼‘𝑁)) ∧ (𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
72	30, 31, 32, 33, 50, 71	syl122anc 1359	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ 𝑒 Btwn ⟨𝑔, 𝐹⟩) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
73	35, 70, 72	syl2ani 597	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → 𝑒 Btwn ⟨𝐷, 𝐹⟩))
74	73	imp 398	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → 𝑒 Btwn ⟨𝐷, 𝐹⟩)
75		simplrr 765	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ (((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
76	75	adantl 474	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)
77	30, 32, 33, 39, 40, 76	cgrcomand 32979	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩)
78	54	ad2antrl 715	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)
79		simprrr 769	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩)
80	30, 33, 50, 40, 41, 79	cgrcomand 32979	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)
81		brcgr3 33034	. . . . . . . . . . . . . . . . . . . . . . . . 25 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
82	30, 39, 40, 41, 32, 33, 50, 81	syl133anc 1373	. . . . . . . . . . . . . . . . . . . . . . . 24 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
83	82	adantr 473	. . . . . . . . . . . . . . . . . . . . . . 23 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩ ↔ (⟨𝐴, 𝐵⟩Cgr⟨𝐷, 𝑒⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩ ∧ ⟨𝐵, 𝐶⟩Cgr⟨𝑒, 𝐹⟩)))
84	77, 78, 80, 83	mpbir3and 1322	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)
85	74, 84	jca 504	. . . . . . . . . . . . . . . . . . . . 21 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
86	85	expr 449	. . . . . . . . . . . . . . . . . . . 20 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝐹⟩ ∧ ⟨𝑒, 𝐹⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
87	69, 86	syl5 34	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑓 = 𝐹 ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩)) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
88	87	expcomd 409	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))))
89	88	impr 447	. . . . . . . . . . . . . . . . 17 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑓 = 𝐹 → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
90	63, 89	mpd 15	. . . . . . . . . . . . . . . 16 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ ((((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩)) ∧ (𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
91	90	expr 449	. . . . . . . . . . . . . . 15 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁) ∧ 𝑓 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
92	26, 91	sylanb 573	. . . . . . . . . . . . . 14 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ 𝑓 ∈ (𝔼‘𝑁)) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
93	92	an32s 639	. . . . . . . . . . . . 13 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) ∧ 𝑓 ∈ (𝔼‘𝑁)) → ((𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
94	93	rexlimdva 3229	. . . . . . . . . . . 12 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (∃𝑓 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝑔, 𝑓⟩ ∧ ⟨𝑒, 𝑓⟩Cgr⟨𝐵, 𝐶⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
95	22, 94	mpd 15	. . . . . . . . . . 11 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ (((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔)) ∧ (𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩))) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
96	95	expr 449	. . . . . . . . . 10 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝑔 ∈ (𝔼‘𝑁) ∧ 𝑒 ∈ (𝔼‘𝑁))) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
97	14, 96	sylanb 573	. . . . . . . . 9 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ 𝑒 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
98	97	an32s 639	. . . . . . . 8 ⊢ (((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) ∧ 𝑒 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → (𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
99	98	reximdva 3219	. . . . . . 7 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → (∃𝑒 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝑔, 𝑒⟩ ∧ ⟨𝐷, 𝑒⟩Cgr⟨𝐴, 𝐵⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
100	13, 99	mpd 15	. . . . . 6 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) ∧ (𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔))) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
101	100	expr 449	. . . . 5 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ 𝑔 ∈ (𝔼‘𝑁)) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
102	101	an32s 639	. . . 4 ⊢ ((((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) ∧ 𝑔 ∈ (𝔼‘𝑁)) → ((𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
103	102	rexlimdva 3229	. . 3 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → (∃𝑔 ∈ (𝔼‘𝑁)(𝐷 Btwn ⟨𝐹, 𝑔⟩ ∧ 𝐷 ≠ 𝑔) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))
104	5, 103	mpd 15	. 2 ⊢ (((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) ∧ (𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩)) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩))
105	104	ex 405	1 ⊢ ((𝑁 ∈ ℕ ∧ (𝐴 ∈ (𝔼‘𝑁) ∧ 𝐵 ∈ (𝔼‘𝑁) ∧ 𝐶 ∈ (𝔼‘𝑁)) ∧ (𝐷 ∈ (𝔼‘𝑁) ∧ 𝐹 ∈ (𝔼‘𝑁))) → ((𝐵 Btwn ⟨𝐴, 𝐶⟩ ∧ ⟨𝐴, 𝐶⟩Cgr⟨𝐷, 𝐹⟩) → ∃𝑒 ∈ (𝔼‘𝑁)(𝑒 Btwn ⟨𝐷, 𝐹⟩ ∧ ⟨𝐴, ⟨𝐵, 𝐶⟩⟩Cgr3⟨𝐷, ⟨𝑒, 𝐹⟩⟩)))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 198 ∧ wa 387 ∧ w3a 1068 = wceq 1507 ∈ wcel 2050 ≠ wne 2967 ∃wrex 3089 ⟨cop 4447 class class class wbr 4929 ‘cfv 6188 ℕcn 11439 𝔼cee 26377 Btwn cbtwn 26378 Cgrccgr 26379 Cgr3ccgr3 33024

This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1758 ax-4 1772 ax-5 1869 ax-6 1928 ax-7 1965 ax-8 2052 ax-9 2059 ax-10 2079 ax-11 2093 ax-12 2106 ax-13 2301 ax-ext 2750 ax-rep 5049 ax-sep 5060 ax-nul 5067 ax-pow 5119 ax-pr 5186 ax-un 7279 ax-inf2 8898 ax-cnex 10391 ax-resscn 10392 ax-1cn 10393 ax-icn 10394 ax-addcl 10395 ax-addrcl 10396 ax-mulcl 10397 ax-mulrcl 10398 ax-mulcom 10399 ax-addass 10400 ax-mulass 10401 ax-distr 10402 ax-i2m1 10403 ax-1ne0 10404 ax-1rid 10405 ax-rnegex 10406 ax-rrecex 10407 ax-cnre 10408 ax-pre-lttri 10409 ax-pre-lttrn 10410 ax-pre-ltadd 10411 ax-pre-mulgt0 10412 ax-pre-sup 10413

This theorem depends on definitions: df-bi 199 df-an 388 df-or 834 df-3or 1069 df-3an 1070 df-tru 1510 df-fal 1520 df-ex 1743 df-nf 1747 df-sb 2016 df-mo 2547 df-eu 2584 df-clab 2759 df-cleq 2771 df-clel 2846 df-nfc 2918 df-ne 2968 df-nel 3074 df-ral 3093 df-rex 3094 df-reu 3095 df-rmo 3096 df-rab 3097 df-v 3417 df-sbc 3682 df-csb 3787 df-dif 3832 df-un 3834 df-in 3836 df-ss 3843 df-pss 3845 df-nul 4179 df-if 4351 df-pw 4424 df-sn 4442 df-pr 4444 df-tp 4446 df-op 4448 df-uni 4713 df-int 4750 df-iun 4794 df-br 4930 df-opab 4992 df-mpt 5009 df-tr 5031 df-id 5312 df-eprel 5317 df-po 5326 df-so 5327 df-fr 5366 df-se 5367 df-we 5368 df-xp 5413 df-rel 5414 df-cnv 5415 df-co 5416 df-dm 5417 df-rn 5418 df-res 5419 df-ima 5420 df-pred 5986 df-ord 6032 df-on 6033 df-lim 6034 df-suc 6035 df-iota 6152 df-fun 6190 df-fn 6191 df-f 6192 df-f1 6193 df-fo 6194 df-f1o 6195 df-fv 6196 df-isom 6197 df-riota 6937 df-ov 6979 df-oprab 6980 df-mpo 6981 df-om 7397 df-1st 7501 df-2nd 7502 df-wrecs 7750 df-recs 7812 df-rdg 7850 df-1o 7905 df-oadd 7909 df-er 8089 df-map 8208 df-en 8307 df-dom 8308 df-sdom 8309 df-fin 8310 df-sup 8701 df-oi 8769 df-card 9162 df-pnf 10476 df-mnf 10477 df-xr 10478 df-ltxr 10479 df-le 10480 df-sub 10672 df-neg 10673 df-div 11099 df-nn 11440 df-2 11503 df-3 11504 df-n0 11708 df-z 11794 df-uz 12059 df-rp 12205 df-ico 12560 df-icc 12561 df-fz 12709 df-fzo 12850 df-seq 13185 df-exp 13245 df-hash 13506 df-cj 14319 df-re 14320 df-im 14321 df-sqrt 14455 df-abs 14456 df-clim 14706 df-sum 14904 df-ee 26380 df-btwn 26381 df-cgr 26382 df-ofs 32971 df-cgr3 33029

This theorem is referenced by: btwnxfr 33044 lineext 33064 seglecgr12im 33098 segletr 33102

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