Theorem iscgra1 28601

Description: A special version of iscgra 28600 where one distance is known to be equal. In this case, angle congruence can be written with only one quantifier. (Contributed by Thierry Arnoux, 9-Aug-2020.)

Hypotheses

Ref	Expression
iscgra.p	⊢ 𝑃 = (Base‘𝐺)
iscgra.i	⊢ 𝐼 = (Itv‘𝐺)
iscgra.k	⊢ 𝐾 = (hlG‘𝐺)
iscgra.g	⊢ (𝜑 → 𝐺 ∈ TarskiG)
iscgra.a	⊢ (𝜑 → 𝐴 ∈ 𝑃)
iscgra.b	⊢ (𝜑 → 𝐵 ∈ 𝑃)
iscgra.c	⊢ (𝜑 → 𝐶 ∈ 𝑃)
iscgra.d	⊢ (𝜑 → 𝐷 ∈ 𝑃)
iscgra.e	⊢ (𝜑 → 𝐸 ∈ 𝑃)
iscgra.f	⊢ (𝜑 → 𝐹 ∈ 𝑃)
iscgra1.m	⊢ − = (dist‘𝐺)
iscgra1.1	⊢ (𝜑 → 𝐴 ≠ 𝐵)
iscgra1.2	⊢ (𝜑 → (𝐴 − 𝐵) = (𝐷 − 𝐸))

Assertion

Ref	Expression
iscgra1	⊢ (𝜑 → (⟨“𝐴𝐵𝐶”⟩(cgrA‘𝐺)⟨“𝐷𝐸𝐹”⟩ ↔ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))

Distinct variable groups:   𝑥,𝐴   𝑥,𝐵   𝑥,𝐶   𝑥,𝐷   𝑥,𝐸   𝑥,𝐹   𝑥,𝐾   𝜑,𝑥   𝑥,𝐺   𝑥,𝐼   𝑥,𝑃

Allowed substitution hint:   − (𝑥)

Proof of Theorem iscgra1

Dummy variable 𝑦 is distinct from all other variables.

Step	Hyp	Ref	Expression
1		iscgra.p	. . 3 ⊢ 𝑃 = (Base‘𝐺)
2		iscgra.i	. . 3 ⊢ 𝐼 = (Itv‘𝐺)
3		iscgra.k	. . 3 ⊢ 𝐾 = (hlG‘𝐺)
4		iscgra.g	. . 3 ⊢ (𝜑 → 𝐺 ∈ TarskiG)
5		iscgra.a	. . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑃)
6		iscgra.b	. . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑃)
7		iscgra.c	. . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑃)
8		iscgra.d	. . 3 ⊢ (𝜑 → 𝐷 ∈ 𝑃)
9		iscgra.e	. . 3 ⊢ (𝜑 → 𝐸 ∈ 𝑃)
10		iscgra.f	. . 3 ⊢ (𝜑 → 𝐹 ∈ 𝑃)
11	1, 2, 3, 4, 5, 6, 7, 8, 9, 10	iscgra 28600	. 2 ⊢ (𝜑 → (⟨“𝐴𝐵𝐶”⟩(cgrA‘𝐺)⟨“𝐷𝐸𝐹”⟩ ↔ ∃𝑦 ∈ 𝑃 ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)))
12	9	ad3antrrr 729	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐸 ∈ 𝑃)
13	6	ad3antrrr 729	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐵 ∈ 𝑃)
14	5	ad3antrrr 729	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐴 ∈ 𝑃)
15	4	ad3antrrr 729	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐺 ∈ TarskiG)
16	8	ad3antrrr 729	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐷 ∈ 𝑃)
17		iscgra1.m	. . . . . . . 8 ⊢ − = (dist‘𝐺)
18		simpllr 775	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝑦 ∈ 𝑃)
19		simpr2 1193	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝑦(𝐾‘𝐸)𝐷)
20	1, 2, 3, 18, 16, 12, 15, 19	hlne2 28397	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐷 ≠ 𝐸)
21		iscgra1.1	. . . . . . . . . 10 ⊢ (𝜑 → 𝐴 ≠ 𝐵)
22	21	ad3antrrr 729	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐴 ≠ 𝐵)
23	22	necomd 2991	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐵 ≠ 𝐴)
24	1, 2, 3, 16, 12, 12, 15, 20	hlid 28400	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐷(𝐾‘𝐸)𝐷)
25		eqid 2727	. . . . . . . . . . 11 ⊢ (cgrG‘𝐺) = (cgrG‘𝐺)
26	7	ad3antrrr 729	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝐶 ∈ 𝑃)
27		simplr 768	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝑥 ∈ 𝑃)
28		simpr1 1192	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → ⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩)
29	1, 17, 2, 25, 15, 14, 13, 26, 18, 12, 27, 28	cgr3simp1 28311	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝐴 − 𝐵) = (𝑦 − 𝐸))
30	29	eqcomd 2733	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝑦 − 𝐸) = (𝐴 − 𝐵))
31	1, 17, 2, 15, 18, 12, 14, 13, 30	tgcgrcomlr 28271	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝐸 − 𝑦) = (𝐵 − 𝐴))
32		iscgra1.2	. . . . . . . . . . 11 ⊢ (𝜑 → (𝐴 − 𝐵) = (𝐷 − 𝐸))
33	32	ad3antrrr 729	. . . . . . . . . 10 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝐴 − 𝐵) = (𝐷 − 𝐸))
34	33	eqcomd 2733	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝐷 − 𝐸) = (𝐴 − 𝐵))
35	1, 17, 2, 15, 16, 12, 14, 13, 34	tgcgrcomlr 28271	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝐸 − 𝐷) = (𝐵 − 𝐴))
36	1, 2, 3, 12, 13, 14, 15, 16, 17, 20, 23, 18, 16, 19, 24, 31, 35	hlcgreulem 28408	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝑦 = 𝐷)
37		simpr3 1194	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → 𝑥(𝐾‘𝐸)𝐹)
38	36, 28, 37	jca32 515	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹)) → (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
39		simprrl 780	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → ⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩)
40		simprl 770	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝑦 = 𝐷)
41	8	ad3antrrr 729	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝐷 ∈ 𝑃)
42	9	ad3antrrr 729	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝐸 ∈ 𝑃)
43	4	ad3antrrr 729	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝐺 ∈ TarskiG)
44	1, 17, 2, 4, 5, 6, 8, 9, 32, 21	tgcgrneq 28274	. . . . . . . . . 10 ⊢ (𝜑 → 𝐷 ≠ 𝐸)
45	44	ad3antrrr 729	. . . . . . . . 9 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝐷 ≠ 𝐸)
46	1, 2, 3, 41, 41, 42, 43, 45	hlid 28400	. . . . . . . 8 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝐷(𝐾‘𝐸)𝐷)
47	40, 46	eqbrtrd 5164	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝑦(𝐾‘𝐸)𝐷)
48		simprrr 781	. . . . . . 7 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → 𝑥(𝐾‘𝐸)𝐹)
49	39, 47, 48	3jca 1126	. . . . . 6 ⊢ ((((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) ∧ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))) → (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹))
50	38, 49	impbida 800	. . . . 5 ⊢ (((𝜑 ∧ 𝑦 ∈ 𝑃) ∧ 𝑥 ∈ 𝑃) → ((⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))))
51	50	rexbidva 3171	. . . 4 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑃) → (∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ ∃𝑥 ∈ 𝑃 (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))))
52		r19.42v 3185	. . . 4 ⊢ (∃𝑥 ∈ 𝑃 (𝑦 = 𝐷 ∧ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)) ↔ (𝑦 = 𝐷 ∧ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
53	51, 52	bitrdi 287	. . 3 ⊢ ((𝜑 ∧ 𝑦 ∈ 𝑃) → (∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ (𝑦 = 𝐷 ∧ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))))
54	53	rexbidva 3171	. 2 ⊢ (𝜑 → (∃𝑦 ∈ 𝑃 ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑦(𝐾‘𝐸)𝐷 ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ ∃𝑦 ∈ 𝑃 (𝑦 = 𝐷 ∧ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹))))
55		id 22	. . . . . . . 8 ⊢ (𝑦 = 𝐷 → 𝑦 = 𝐷)
56		eqidd 2728	. . . . . . . 8 ⊢ (𝑦 = 𝐷 → 𝐸 = 𝐸)
57		eqidd 2728	. . . . . . . 8 ⊢ (𝑦 = 𝐷 → 𝑥 = 𝑥)
58	55, 56, 57	s3eqd 14839	. . . . . . 7 ⊢ (𝑦 = 𝐷 → ⟨“𝑦𝐸𝑥”⟩ = ⟨“𝐷𝐸𝑥”⟩)
59	58	breq2d 5154	. . . . . 6 ⊢ (𝑦 = 𝐷 → (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ↔ ⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩))
60	59	anbi1d 629	. . . . 5 ⊢ (𝑦 = 𝐷 → ((⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
61	60	rexbidv 3173	. . . 4 ⊢ (𝑦 = 𝐷 → (∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹) ↔ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
62	61	ceqsrexv 3639	. . 3 ⊢ (𝐷 ∈ 𝑃 → (∃𝑦 ∈ 𝑃 (𝑦 = 𝐷 ∧ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)) ↔ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
63	8, 62	syl 17	. 2 ⊢ (𝜑 → (∃𝑦 ∈ 𝑃 (𝑦 = 𝐷 ∧ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝑦𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)) ↔ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))
64	11, 54, 63	3bitrd 305	1 ⊢ (𝜑 → (⟨“𝐴𝐵𝐶”⟩(cgrA‘𝐺)⟨“𝐷𝐸𝐹”⟩ ↔ ∃𝑥 ∈ 𝑃 (⟨“𝐴𝐵𝐶”⟩(cgrG‘𝐺)⟨“𝐷𝐸𝑥”⟩ ∧ 𝑥(𝐾‘𝐸)𝐹)))

Syntax hints:   → wi 4   ↔ wb 205   ∧ wa 395   ∧ w3a 1085   = wceq 1534   ∈ wcel 2099   ≠ wne 2935  ∃wrex 3065   class class class wbr 5142  ‘cfv 6542  (class class class)co 7414  ⟨“cs3 14817  Basecbs 17171  distcds 17233  TarskiGcstrkg 28218  Itvcitv 28224  cgrGccgrg 28301  hlGchlg 28391  cgrAccgra 28598

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1790  ax-4 1804  ax-5 1906  ax-6 1964  ax-7 2004  ax-8 2101  ax-9 2109  ax-10 2130  ax-11 2147  ax-12 2164  ax-ext 2698  ax-rep 5279  ax-sep 5293  ax-nul 5300  ax-pow 5359  ax-pr 5423  ax-un 7734  ax-cnex 11186  ax-resscn 11187  ax-1cn 11188  ax-icn 11189  ax-addcl 11190  ax-addrcl 11191  ax-mulcl 11192  ax-mulrcl 11193  ax-mulcom 11194  ax-addass 11195  ax-mulass 11196  ax-distr 11197  ax-i2m1 11198  ax-1ne0 11199  ax-1rid 11200  ax-rnegex 11201  ax-rrecex 11202  ax-cnre 11203  ax-pre-lttri 11204  ax-pre-lttrn 11205  ax-pre-ltadd 11206  ax-pre-mulgt0 11207

This theorem depends on definitions:  df-bi 206  df-an 396  df-or 847  df-3or 1086  df-3an 1087  df-tru 1537  df-fal 1547  df-ex 1775  df-nf 1779  df-sb 2061  df-mo 2529  df-eu 2558  df-clab 2705  df-cleq 2719  df-clel 2805  df-nfc 2880  df-ne 2936  df-nel 3042  df-ral 3057  df-rex 3066  df-reu 3372  df-rab 3428  df-v 3471  df-sbc 3775  df-csb 3890  df-dif 3947  df-un 3949  df-in 3951  df-ss 3961  df-pss 3963  df-nul 4319  df-if 4525  df-pw 4600  df-sn 4625  df-pr 4627  df-tp 4629  df-op 4631  df-uni 4904  df-int 4945  df-iun 4993  df-br 5143  df-opab 5205  df-mpt 5226  df-tr 5260  df-id 5570  df-eprel 5576  df-po 5584  df-so 5585  df-fr 5627  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 6299  df-ord 6366  df-on 6367  df-lim 6368  df-suc 6369  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-riota 7370  df-ov 7417  df-oprab 7418  df-mpo 7419  df-om 7865  df-1st 7987  df-2nd 7988  df-frecs 8280  df-wrecs 8311  df-recs 8385  df-rdg 8424  df-1o 8480  df-oadd 8484  df-er 8718  df-map 8838  df-pm 8839  df-en 8956  df-dom 8957  df-sdom 8958  df-fin 8959  df-dju 9916  df-card 9954  df-pnf 11272  df-mnf 11273  df-xr 11274  df-ltxr 11275  df-le 11276  df-sub 11468  df-neg 11469  df-nn 12235  df-2 12297  df-3 12298  df-n0 12495  df-xnn0 12567  df-z 12581  df-uz 12845  df-fz 13509  df-fzo 13652  df-hash 14314  df-word 14489  df-concat 14545  df-s1 14570  df-s2 14823  df-s3 14824  df-trkgc 28239  df-trkgb 28240  df-trkgcb 28241  df-trkg 28244  df-cgrg 28302  df-hlg 28392  df-cgra 28599

This theorem is referenced by:  acopyeu  28625