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Theorem ercgrg 26311
Description: The shape congruence relation is an equivalence relation. Statement 4.4 of [Schwabhauser] p. 35. (Contributed by Thierry Arnoux, 9-Apr-2019.)
Hypothesis
Ref Expression
ercgrg.p 𝑃 = (Base‘𝐺)
Assertion
Ref Expression
ercgrg (𝐺 ∈ TarskiG → (cgrG‘𝐺) Er (𝑃pm ℝ))

Proof of Theorem ercgrg
Dummy variables 𝑎 𝑏 𝑔 𝑖 𝑗 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 df-cgrg 26305 . . . 4 cgrG = (𝑔 ∈ V ↦ {⟨𝑎, 𝑏⟩ ∣ ((𝑎 ∈ ((Base‘𝑔) ↑pm ℝ) ∧ 𝑏 ∈ ((Base‘𝑔) ↑pm ℝ)) ∧ (dom 𝑎 = dom 𝑏 ∧ ∀𝑖 ∈ dom 𝑎𝑗 ∈ dom 𝑎((𝑎𝑖)(dist‘𝑔)(𝑎𝑗)) = ((𝑏𝑖)(dist‘𝑔)(𝑏𝑗))))})
21relmptopab 7375 . . 3 Rel (cgrG‘𝐺)
32a1i 11 . 2 (𝐺 ∈ TarskiG → Rel (cgrG‘𝐺))
4 ercgrg.p . . . . . . 7 𝑃 = (Base‘𝐺)
5 eqid 2798 . . . . . . 7 (dist‘𝐺) = (dist‘𝐺)
6 eqid 2798 . . . . . . 7 (cgrG‘𝐺) = (cgrG‘𝐺)
74, 5, 6iscgrg 26306 . . . . . 6 (𝐺 ∈ TarskiG → (𝑥(cgrG‘𝐺)𝑦 ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑦 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑦 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗))))))
87biimpa 480 . . . . 5 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑦 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑦 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))))
98simpld 498 . . . 4 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → (𝑥 ∈ (𝑃pm ℝ) ∧ 𝑦 ∈ (𝑃pm ℝ)))
109ancomd 465 . . 3 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → (𝑦 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)))
118simprd 499 . . . . . 6 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → (dom 𝑥 = dom 𝑦 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗))))
1211simpld 498 . . . . 5 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → dom 𝑥 = dom 𝑦)
1312eqcomd 2804 . . . 4 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → dom 𝑦 = dom 𝑥)
14 simpl 486 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → (𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦))
15 simprl 770 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → 𝑖 ∈ dom 𝑦)
1612adantr 484 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → dom 𝑥 = dom 𝑦)
1715, 16eleqtrrd 2893 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → 𝑖 ∈ dom 𝑥)
18 simprr 772 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → 𝑗 ∈ dom 𝑦)
1918, 16eleqtrrd 2893 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → 𝑗 ∈ dom 𝑥)
2011simprd 499 . . . . . . . . 9 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
2120r19.21bi 3173 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ 𝑖 ∈ dom 𝑥) → ∀𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
2221r19.21bi 3173 . . . . . . 7 ((((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ 𝑖 ∈ dom 𝑥) ∧ 𝑗 ∈ dom 𝑥) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
2314, 17, 19, 22syl21anc 836 . . . . . 6 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
2423eqcomd 2804 . . . . 5 (((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) ∧ (𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦)) → ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))
2524ralrimivva 3156 . . . 4 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))
2613, 25jca 515 . . 3 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → (dom 𝑦 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗))))
274, 5, 6iscgrg 26306 . . . 4 (𝐺 ∈ TarskiG → (𝑦(cgrG‘𝐺)𝑥 ↔ ((𝑦 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ∧ (dom 𝑦 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗))))))
2827adantr 484 . . 3 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → (𝑦(cgrG‘𝐺)𝑥 ↔ ((𝑦 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ∧ (dom 𝑦 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗))))))
2910, 26, 28mpbir2and 712 . 2 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → 𝑦(cgrG‘𝐺)𝑥)
309simpld 498 . . . . 5 ((𝐺 ∈ TarskiG ∧ 𝑥(cgrG‘𝐺)𝑦) → 𝑥 ∈ (𝑃pm ℝ))
3130adantrr 716 . . . 4 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → 𝑥 ∈ (𝑃pm ℝ))
324, 5, 6iscgrg 26306 . . . . . . . 8 (𝐺 ∈ TarskiG → (𝑦(cgrG‘𝐺)𝑧 ↔ ((𝑦 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)) ∧ (dom 𝑦 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗))))))
3332biimpa 480 . . . . . . 7 ((𝐺 ∈ TarskiG ∧ 𝑦(cgrG‘𝐺)𝑧) → ((𝑦 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)) ∧ (dom 𝑦 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))))
3433adantrl 715 . . . . . 6 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → ((𝑦 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)) ∧ (dom 𝑦 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))))
3534simpld 498 . . . . 5 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (𝑦 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)))
3635simprd 499 . . . 4 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → 𝑧 ∈ (𝑃pm ℝ))
3731, 36jca 515 . . 3 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (𝑥 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)))
388adantrr 716 . . . . . . 7 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑦 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑦 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))))
3938simprd 499 . . . . . 6 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (dom 𝑥 = dom 𝑦 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗))))
4039simpld 498 . . . . 5 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → dom 𝑥 = dom 𝑦)
4134simprd 499 . . . . . 6 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (dom 𝑦 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗))))
4241simpld 498 . . . . 5 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → dom 𝑦 = dom 𝑧)
4340, 42eqtrd 2833 . . . 4 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → dom 𝑥 = dom 𝑧)
4439simprd 499 . . . . . . . . 9 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
4544r19.21bi 3173 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ 𝑖 ∈ dom 𝑥) → ∀𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
4645r19.21bi 3173 . . . . . . 7 ((((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ 𝑖 ∈ dom 𝑥) ∧ 𝑗 ∈ dom 𝑥) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
4746anasss 470 . . . . . 6 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)))
48 simpl 486 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → (𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)))
49 simprl 770 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → 𝑖 ∈ dom 𝑥)
5040adantr 484 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → dom 𝑥 = dom 𝑦)
5149, 50eleqtrd 2892 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → 𝑖 ∈ dom 𝑦)
52 simprr 772 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → 𝑗 ∈ dom 𝑥)
5352, 50eleqtrd 2892 . . . . . . 7 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → 𝑗 ∈ dom 𝑦)
5441simprd 499 . . . . . . . . 9 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → ∀𝑖 ∈ dom 𝑦𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
5554r19.21bi 3173 . . . . . . . 8 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ 𝑖 ∈ dom 𝑦) → ∀𝑗 ∈ dom 𝑦((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
5655r19.21bi 3173 . . . . . . 7 ((((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ 𝑖 ∈ dom 𝑦) ∧ 𝑗 ∈ dom 𝑦) → ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
5748, 51, 53, 56syl21anc 836 . . . . . 6 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → ((𝑦𝑖)(dist‘𝐺)(𝑦𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
5847, 57eqtrd 2833 . . . . 5 (((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) ∧ (𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥)) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
5958ralrimivva 3156 . . . 4 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗)))
6043, 59jca 515 . . 3 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (dom 𝑥 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗))))
614, 5, 6iscgrg 26306 . . . 4 (𝐺 ∈ TarskiG → (𝑥(cgrG‘𝐺)𝑧 ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗))))))
6261adantr 484 . . 3 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → (𝑥(cgrG‘𝐺)𝑧 ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑧 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑧 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑧𝑖)(dist‘𝐺)(𝑧𝑗))))))
6337, 60, 62mpbir2and 712 . 2 ((𝐺 ∈ TarskiG ∧ (𝑥(cgrG‘𝐺)𝑦𝑦(cgrG‘𝐺)𝑧)) → 𝑥(cgrG‘𝐺)𝑧)
64 pm4.24 567 . . . 4 (𝑥 ∈ (𝑃pm ℝ) ↔ (𝑥 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)))
65 eqid 2798 . . . . . 6 dom 𝑥 = dom 𝑥
66 eqidd 2799 . . . . . . 7 ((𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥) → ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))
6766rgen2 3168 . . . . . 6 𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗))
6865, 67pm3.2i 474 . . . . 5 (dom 𝑥 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))
6968biantru 533 . . . 4 ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))))
7064, 69bitri 278 . . 3 (𝑥 ∈ (𝑃pm ℝ) ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)))))
714, 5, 6iscgrg 26306 . . 3 (𝐺 ∈ TarskiG → (𝑥(cgrG‘𝐺)𝑥 ↔ ((𝑥 ∈ (𝑃pm ℝ) ∧ 𝑥 ∈ (𝑃pm ℝ)) ∧ (dom 𝑥 = dom 𝑥 ∧ ∀𝑖 ∈ dom 𝑥𝑗 ∈ dom 𝑥((𝑥𝑖)(dist‘𝐺)(𝑥𝑗)) = ((𝑥𝑖)(dist‘𝐺)(𝑥𝑗))))))
7270, 71bitr4id 293 . 2 (𝐺 ∈ TarskiG → (𝑥 ∈ (𝑃pm ℝ) ↔ 𝑥(cgrG‘𝐺)𝑥))
733, 29, 63, 72iserd 8298 1 (𝐺 ∈ TarskiG → (cgrG‘𝐺) Er (𝑃pm ℝ))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 399   = wceq 1538  wcel 2111  wral 3106  Vcvv 3441   class class class wbr 5030  dom cdm 5519  Rel wrel 5524  cfv 6324  (class class class)co 7135   Er wer 8269  pm cpm 8390  cr 10525  Basecbs 16475  distcds 16566  TarskiGcstrkg 26224  cgrGccgrg 26304
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811  ax-5 1911  ax-6 1970  ax-7 2015  ax-8 2113  ax-9 2121  ax-10 2142  ax-11 2158  ax-12 2175  ax-ext 2770  ax-sep 5167  ax-nul 5174  ax-pow 5231  ax-pr 5295  ax-un 7441
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2070  df-mo 2598  df-eu 2629  df-clab 2777  df-cleq 2791  df-clel 2870  df-nfc 2938  df-ral 3111  df-rex 3112  df-rab 3115  df-v 3443  df-sbc 3721  df-csb 3829  df-dif 3884  df-un 3886  df-in 3888  df-ss 3898  df-nul 4244  df-if 4426  df-pw 4499  df-sn 4526  df-pr 4528  df-op 4532  df-uni 4801  df-br 5031  df-opab 5093  df-mpt 5111  df-id 5425  df-xp 5525  df-rel 5526  df-cnv 5527  df-co 5528  df-dm 5529  df-rn 5530  df-res 5531  df-ima 5532  df-iota 6283  df-fun 6326  df-fv 6332  df-ov 7138  df-er 8272  df-cgrg 26305
This theorem is referenced by: (None)
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