Theorem xpsdsval 24356

Description: Value of the metric in a binary structure product. (Contributed by Mario Carneiro, 20-Aug-2015.)

Hypotheses

Ref	Expression
xpsds.t	⊢ 𝑇 = (𝑅 ×s 𝑆)
xpsds.x	⊢ 𝑋 = (Base‘𝑅)
xpsds.y	⊢ 𝑌 = (Base‘𝑆)
xpsds.1	⊢ (𝜑 → 𝑅 ∈ 𝑉)
xpsds.2	⊢ (𝜑 → 𝑆 ∈ 𝑊)
xpsds.p	⊢ 𝑃 = (dist‘𝑇)
xpsds.m	⊢ 𝑀 = ((dist‘𝑅) ↾ (𝑋 × 𝑋))
xpsds.n	⊢ 𝑁 = ((dist‘𝑆) ↾ (𝑌 × 𝑌))
xpsds.3	⊢ (𝜑 → 𝑀 ∈ (∞Met‘𝑋))
xpsds.4	⊢ (𝜑 → 𝑁 ∈ (∞Met‘𝑌))
xpsds.a	⊢ (𝜑 → 𝐴 ∈ 𝑋)
xpsds.b	⊢ (𝜑 → 𝐵 ∈ 𝑌)
xpsds.c	⊢ (𝜑 → 𝐶 ∈ 𝑋)
xpsds.d	⊢ (𝜑 → 𝐷 ∈ 𝑌)

Assertion

Ref	Expression
xpsdsval	⊢ (𝜑 → (⟨𝐴, 𝐵⟩𝑃⟨𝐶, 𝐷⟩) = sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))

Proof of Theorem xpsdsval

Dummy variables 𝑥 𝑘 𝑦 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		xpsds.t	. . . . 5 ⊢ 𝑇 = (𝑅 ×s 𝑆)
2		xpsds.x	. . . . 5 ⊢ 𝑋 = (Base‘𝑅)
3		xpsds.y	. . . . 5 ⊢ 𝑌 = (Base‘𝑆)
4		xpsds.1	. . . . 5 ⊢ (𝜑 → 𝑅 ∈ 𝑉)
5		xpsds.2	. . . . 5 ⊢ (𝜑 → 𝑆 ∈ 𝑊)
6		eqid 2737	. . . . 5 ⊢ (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) = (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
7		eqid 2737	. . . . 5 ⊢ (Scalar‘𝑅) = (Scalar‘𝑅)
8		eqid 2737	. . . . 5 ⊢ ((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}) = ((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})
9	1, 2, 3, 4, 5, 6, 7, 8	xpsval 17525	. . . 4 ⊢ (𝜑 → 𝑇 = (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) “s ((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})))
10	1, 2, 3, 4, 5, 6, 7, 8	xpsrnbas 17526	. . . 4 ⊢ (𝜑 → ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) = (Base‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})))
11	6	xpsff1o2 17524	. . . . 5 ⊢ (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)–1-1-onto→ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
12		f1ocnv 6786	. . . . 5 ⊢ ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)–1-1-onto→ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) → ◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})–1-1-onto→(𝑋 × 𝑌))
13	11, 12	mp1i 13	. . . 4 ⊢ (𝜑 → ◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})–1-1-onto→(𝑋 × 𝑌))
14		ovexd 7395	. . . 4 ⊢ (𝜑 → ((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}) ∈ V)
15		eqid 2737	. . . 4 ⊢ ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))) = ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})))
16		xpsds.p	. . . 4 ⊢ 𝑃 = (dist‘𝑇)
17		xpsds.m	. . . . . 6 ⊢ 𝑀 = ((dist‘𝑅) ↾ (𝑋 × 𝑋))
18		xpsds.n	. . . . . 6 ⊢ 𝑁 = ((dist‘𝑆) ↾ (𝑌 × 𝑌))
19		xpsds.3	. . . . . 6 ⊢ (𝜑 → 𝑀 ∈ (∞Met‘𝑋))
20		xpsds.4	. . . . . 6 ⊢ (𝜑 → 𝑁 ∈ (∞Met‘𝑌))
21	1, 2, 3, 4, 5, 16, 17, 18, 19, 20	xpsxmetlem 24354	. . . . 5 ⊢ (𝜑 → (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ∈ (∞Met‘ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})))
22		ssid 3945	. . . . 5 ⊢ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) ⊆ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
23		xmetres2 24336	. . . . 5 ⊢ (((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ∈ (∞Met‘ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})) ∧ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) ⊆ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})) → ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))) ∈ (∞Met‘ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})))
24	21, 22, 23	sylancl 587	. . . 4 ⊢ (𝜑 → ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))) ∈ (∞Met‘ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})))
25		df-ov 7363	. . . . . 6 ⊢ (𝐴(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐵) = ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩)
26		xpsds.a	. . . . . . 7 ⊢ (𝜑 → 𝐴 ∈ 𝑋)
27		xpsds.b	. . . . . . 7 ⊢ (𝜑 → 𝐵 ∈ 𝑌)
28	6	xpsfval 17521	. . . . . . 7 ⊢ ((𝐴 ∈ 𝑋 ∧ 𝐵 ∈ 𝑌) → (𝐴(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐵) = {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})
29	26, 27, 28	syl2anc 585	. . . . . 6 ⊢ (𝜑 → (𝐴(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐵) = {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})
30	25, 29	eqtr3id 2786	. . . . 5 ⊢ (𝜑 → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩) = {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})
31	26, 27	opelxpd 5663	. . . . . 6 ⊢ (𝜑 → ⟨𝐴, 𝐵⟩ ∈ (𝑋 × 𝑌))
32		f1of 6774	. . . . . . . 8 ⊢ ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)–1-1-onto→ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) → (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)⟶ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
33	11, 32	ax-mp 5	. . . . . . 7 ⊢ (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)⟶ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})
34	33	ffvelcdmi 7029	. . . . . 6 ⊢ (⟨𝐴, 𝐵⟩ ∈ (𝑋 × 𝑌) → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩) ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
35	31, 34	syl 17	. . . . 5 ⊢ (𝜑 → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩) ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
36	30, 35	eqeltrrd 2838	. . . 4 ⊢ (𝜑 → {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
37		df-ov 7363	. . . . . 6 ⊢ (𝐶(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐷) = ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩)
38		xpsds.c	. . . . . . 7 ⊢ (𝜑 → 𝐶 ∈ 𝑋)
39		xpsds.d	. . . . . . 7 ⊢ (𝜑 → 𝐷 ∈ 𝑌)
40	6	xpsfval 17521	. . . . . . 7 ⊢ ((𝐶 ∈ 𝑋 ∧ 𝐷 ∈ 𝑌) → (𝐶(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐷) = {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})
41	38, 39, 40	syl2anc 585	. . . . . 6 ⊢ (𝜑 → (𝐶(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})𝐷) = {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})
42	37, 41	eqtr3id 2786	. . . . 5 ⊢ (𝜑 → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩) = {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})
43	38, 39	opelxpd 5663	. . . . . 6 ⊢ (𝜑 → ⟨𝐶, 𝐷⟩ ∈ (𝑋 × 𝑌))
44	33	ffvelcdmi 7029	. . . . . 6 ⊢ (⟨𝐶, 𝐷⟩ ∈ (𝑋 × 𝑌) → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩) ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
45	43, 44	syl 17	. . . . 5 ⊢ (𝜑 → ((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩) ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
46	42, 45	eqeltrrd 2838	. . . 4 ⊢ (𝜑 → {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩} ∈ ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))
47	9, 10, 13, 14, 15, 16, 24, 36, 46	imasdsf1o 24349	. . 3 ⊢ (𝜑 → ((◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})𝑃(◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})) = ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}))
48	36, 46	ovresd 7527	. . 3 ⊢ (𝜑 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} ((dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) ↾ (ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) × ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}))){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}))
49	47, 48	eqtrd 2772	. 2 ⊢ (𝜑 → ((◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})𝑃(◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})) = ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}))
50		f1ocnvfv 7226	. . . . 5 ⊢ (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)–1-1-onto→ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) ∧ ⟨𝐴, 𝐵⟩ ∈ (𝑋 × 𝑌)) → (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩) = {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}) = ⟨𝐴, 𝐵⟩))
51	11, 31, 50	sylancr 588	. . . 4 ⊢ (𝜑 → (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐴, 𝐵⟩) = {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}) = ⟨𝐴, 𝐵⟩))
52	30, 51	mpd 15	. . 3 ⊢ (𝜑 → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}) = ⟨𝐴, 𝐵⟩)
53		f1ocnvfv 7226	. . . . 5 ⊢ (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}):(𝑋 × 𝑌)–1-1-onto→ran (𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩}) ∧ ⟨𝐶, 𝐷⟩ ∈ (𝑋 × 𝑌)) → (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩) = {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩} → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = ⟨𝐶, 𝐷⟩))
54	11, 43, 53	sylancr 588	. . . 4 ⊢ (𝜑 → (((𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘⟨𝐶, 𝐷⟩) = {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩} → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = ⟨𝐶, 𝐷⟩))
55	42, 54	mpd 15	. . 3 ⊢ (𝜑 → (◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = ⟨𝐶, 𝐷⟩)
56	52, 55	oveq12d 7378	. 2 ⊢ (𝜑 → ((◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩})𝑃(◡(𝑥 ∈ 𝑋, 𝑦 ∈ 𝑌 ↦ {⟨∅, 𝑥⟩, ⟨1o, 𝑦⟩})‘{⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩})) = (⟨𝐴, 𝐵⟩𝑃⟨𝐶, 𝐷⟩))
57		eqid 2737	. . . 4 ⊢ (Base‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) = (Base‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}))
58		fvexd 6849	. . . 4 ⊢ (𝜑 → (Scalar‘𝑅) ∈ V)
59		2on 8411	. . . . 5 ⊢ 2o ∈ On
60	59	a1i 11	. . . 4 ⊢ (𝜑 → 2o ∈ On)
61		fnpr2o 17512	. . . . 5 ⊢ ((𝑅 ∈ 𝑉 ∧ 𝑆 ∈ 𝑊) → {⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩} Fn 2o)
62	4, 5, 61	syl2anc 585	. . . 4 ⊢ (𝜑 → {⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩} Fn 2o)
63	36, 10	eleqtrd 2839	. . . 4 ⊢ (𝜑 → {⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} ∈ (Base‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})))
64	46, 10	eleqtrd 2839	. . . 4 ⊢ (𝜑 → {⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩} ∈ (Base‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})))
65		eqid 2737	. . . 4 ⊢ (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})) = (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}))
66	8, 57, 58, 60, 62, 63, 64, 65	prdsdsval 17432	. . 3 ⊢ (𝜑 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = sup((ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ∪ {0}), ℝ*, < ))
67		df2o3 8406	. . . . . . . . . . 11 ⊢ 2o = {∅, 1o}
68	67	rexeqi 3295	. . . . . . . . . 10 ⊢ (∃𝑘 ∈ 2o 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ ∃𝑘 ∈ {∅, 1o}𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)))
69		0ex 5242	. . . . . . . . . . 11 ⊢ ∅ ∈ V
70		1oex 8408	. . . . . . . . . . 11 ⊢ 1o ∈ V
71		2fveq3 6839	. . . . . . . . . . . . 13 ⊢ (𝑘 = ∅ → (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘)) = (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅)))
72		fveq2 6834	. . . . . . . . . . . . 13 ⊢ (𝑘 = ∅ → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘) = ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅))
73		fveq2 6834	. . . . . . . . . . . . 13 ⊢ (𝑘 = ∅ → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘) = ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅))
74	71, 72, 73	oveq123d 7381	. . . . . . . . . . . 12 ⊢ (𝑘 = ∅ → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)))
75	74	eqeq2d 2748	. . . . . . . . . . 11 ⊢ (𝑘 = ∅ → (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅))))
76		2fveq3 6839	. . . . . . . . . . . . 13 ⊢ (𝑘 = 1o → (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘)) = (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o)))
77		fveq2 6834	. . . . . . . . . . . . 13 ⊢ (𝑘 = 1o → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘) = ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o))
78		fveq2 6834	. . . . . . . . . . . . 13 ⊢ (𝑘 = 1o → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘) = ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o))
79	76, 77, 78	oveq123d 7381	. . . . . . . . . . . 12 ⊢ (𝑘 = 1o → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o)))
80	79	eqeq2d 2748	. . . . . . . . . . 11 ⊢ (𝑘 = 1o → (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o))))
81	69, 70, 75, 80	rexpr 4646	. . . . . . . . . 10 ⊢ (∃𝑘 ∈ {∅, 1o}𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) ∨ 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o))))
82	68, 81	bitri 275	. . . . . . . . 9 ⊢ (∃𝑘 ∈ 2o 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) ∨ 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o))))
83		fvpr0o 17514	. . . . . . . . . . . . . . 15 ⊢ (𝑅 ∈ 𝑉 → ({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅) = 𝑅)
84	4, 83	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝜑 → ({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅) = 𝑅)
85	84	fveq2d 6838	. . . . . . . . . . . . 13 ⊢ (𝜑 → (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅)) = (dist‘𝑅))
86		fvpr0o 17514	. . . . . . . . . . . . . 14 ⊢ (𝐴 ∈ 𝑋 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅) = 𝐴)
87	26, 86	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅) = 𝐴)
88		fvpr0o 17514	. . . . . . . . . . . . . 14 ⊢ (𝐶 ∈ 𝑋 → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅) = 𝐶)
89	38, 88	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅) = 𝐶)
90	85, 87, 89	oveq123d 7381	. . . . . . . . . . . 12 ⊢ (𝜑 → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) = (𝐴(dist‘𝑅)𝐶))
91	17	oveqi 7373	. . . . . . . . . . . . 13 ⊢ (𝐴𝑀𝐶) = (𝐴((dist‘𝑅) ↾ (𝑋 × 𝑋))𝐶)
92	26, 38	ovresd 7527	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝐴((dist‘𝑅) ↾ (𝑋 × 𝑋))𝐶) = (𝐴(dist‘𝑅)𝐶))
93	91, 92	eqtrid 2784	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝐴𝑀𝐶) = (𝐴(dist‘𝑅)𝐶))
94	90, 93	eqtr4d 2775	. . . . . . . . . . 11 ⊢ (𝜑 → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) = (𝐴𝑀𝐶))
95	94	eqeq2d 2748	. . . . . . . . . 10 ⊢ (𝜑 → (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) ↔ 𝑥 = (𝐴𝑀𝐶)))
96		fvpr1o 17515	. . . . . . . . . . . . . . 15 ⊢ (𝑆 ∈ 𝑊 → ({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o) = 𝑆)
97	5, 96	syl 17	. . . . . . . . . . . . . 14 ⊢ (𝜑 → ({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o) = 𝑆)
98	97	fveq2d 6838	. . . . . . . . . . . . 13 ⊢ (𝜑 → (dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o)) = (dist‘𝑆))
99		fvpr1o 17515	. . . . . . . . . . . . . 14 ⊢ (𝐵 ∈ 𝑌 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o) = 𝐵)
100	27, 99	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o) = 𝐵)
101		fvpr1o 17515	. . . . . . . . . . . . . 14 ⊢ (𝐷 ∈ 𝑌 → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o) = 𝐷)
102	39, 101	syl 17	. . . . . . . . . . . . 13 ⊢ (𝜑 → ({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o) = 𝐷)
103	98, 100, 102	oveq123d 7381	. . . . . . . . . . . 12 ⊢ (𝜑 → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o)) = (𝐵(dist‘𝑆)𝐷))
104	18	oveqi 7373	. . . . . . . . . . . . 13 ⊢ (𝐵𝑁𝐷) = (𝐵((dist‘𝑆) ↾ (𝑌 × 𝑌))𝐷)
105	27, 39	ovresd 7527	. . . . . . . . . . . . 13 ⊢ (𝜑 → (𝐵((dist‘𝑆) ↾ (𝑌 × 𝑌))𝐷) = (𝐵(dist‘𝑆)𝐷))
106	104, 105	eqtrid 2784	. . . . . . . . . . . 12 ⊢ (𝜑 → (𝐵𝑁𝐷) = (𝐵(dist‘𝑆)𝐷))
107	103, 106	eqtr4d 2775	. . . . . . . . . . 11 ⊢ (𝜑 → (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o)) = (𝐵𝑁𝐷))
108	107	eqeq2d 2748	. . . . . . . . . 10 ⊢ (𝜑 → (𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o)) ↔ 𝑥 = (𝐵𝑁𝐷)))
109	95, 108	orbi12d 919	. . . . . . . . 9 ⊢ (𝜑 → ((𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘∅)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘∅))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘∅)) ∨ 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘1o)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘1o))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘1o))) ↔ (𝑥 = (𝐴𝑀𝐶) ∨ 𝑥 = (𝐵𝑁𝐷))))
110	82, 109	bitrid 283	. . . . . . . 8 ⊢ (𝜑 → (∃𝑘 ∈ 2o 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)) ↔ (𝑥 = (𝐴𝑀𝐶) ∨ 𝑥 = (𝐵𝑁𝐷))))
111		eqid 2737	. . . . . . . . . 10 ⊢ (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) = (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)))
112	111	elrnmpt 5907	. . . . . . . . 9 ⊢ (𝑥 ∈ V → (𝑥 ∈ ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ↔ ∃𝑘 ∈ 2o 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))))
113	112	elv 3435	. . . . . . . 8 ⊢ (𝑥 ∈ ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ↔ ∃𝑘 ∈ 2o 𝑥 = (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘)))
114		vex 3434	. . . . . . . . 9 ⊢ 𝑥 ∈ V
115	114	elpr 4593	. . . . . . . 8 ⊢ (𝑥 ∈ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ↔ (𝑥 = (𝐴𝑀𝐶) ∨ 𝑥 = (𝐵𝑁𝐷)))
116	110, 113, 115	3bitr4g 314	. . . . . . 7 ⊢ (𝜑 → (𝑥 ∈ ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ↔ 𝑥 ∈ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}))
117	116	eqrdv 2735	. . . . . 6 ⊢ (𝜑 → ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) = {(𝐴𝑀𝐶), (𝐵𝑁𝐷)})
118	117	uneq1d 4108	. . . . 5 ⊢ (𝜑 → (ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ∪ {0}) = ({(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ∪ {0}))
119		uncom 4099	. . . . 5 ⊢ ({(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ∪ {0}) = ({0} ∪ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)})
120	118, 119	eqtrdi 2788	. . . 4 ⊢ (𝜑 → (ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ∪ {0}) = ({0} ∪ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}))
121	120	supeq1d 9352	. . 3 ⊢ (𝜑 → sup((ran (𝑘 ∈ 2o ↦ (({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩}‘𝑘)(dist‘({⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩}‘𝑘))({⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}‘𝑘))) ∪ {0}), ℝ*, < ) = sup(({0} ∪ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}), ℝ*, < ))
122		0xr 11183	. . . . . 6 ⊢ 0 ∈ ℝ*
123	122	a1i 11	. . . . 5 ⊢ (𝜑 → 0 ∈ ℝ*)
124	123	snssd 4753	. . . 4 ⊢ (𝜑 → {0} ⊆ ℝ*)
125		xmetcl 24306	. . . . . 6 ⊢ ((𝑀 ∈ (∞Met‘𝑋) ∧ 𝐴 ∈ 𝑋 ∧ 𝐶 ∈ 𝑋) → (𝐴𝑀𝐶) ∈ ℝ*)
126	19, 26, 38, 125	syl3anc 1374	. . . . 5 ⊢ (𝜑 → (𝐴𝑀𝐶) ∈ ℝ*)
127		xmetcl 24306	. . . . . 6 ⊢ ((𝑁 ∈ (∞Met‘𝑌) ∧ 𝐵 ∈ 𝑌 ∧ 𝐷 ∈ 𝑌) → (𝐵𝑁𝐷) ∈ ℝ*)
128	20, 27, 39, 127	syl3anc 1374	. . . . 5 ⊢ (𝜑 → (𝐵𝑁𝐷) ∈ ℝ*)
129	126, 128	prssd 4766	. . . 4 ⊢ (𝜑 → {(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ⊆ ℝ*)
130		xrltso 13083	. . . . . 6 ⊢ < Or ℝ*
131		supsn 9379	. . . . . 6 ⊢ (( < Or ℝ* ∧ 0 ∈ ℝ*) → sup({0}, ℝ*, < ) = 0)
132	130, 122, 131	mp2an 693	. . . . 5 ⊢ sup({0}, ℝ*, < ) = 0
133		supxrcl 13258	. . . . . . 7 ⊢ ({(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ⊆ ℝ* → sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ) ∈ ℝ*)
134	129, 133	syl 17	. . . . . 6 ⊢ (𝜑 → sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ) ∈ ℝ*)
135		xmetge0 24319	. . . . . . 7 ⊢ ((𝑀 ∈ (∞Met‘𝑋) ∧ 𝐴 ∈ 𝑋 ∧ 𝐶 ∈ 𝑋) → 0 ≤ (𝐴𝑀𝐶))
136	19, 26, 38, 135	syl3anc 1374	. . . . . 6 ⊢ (𝜑 → 0 ≤ (𝐴𝑀𝐶))
137		ovex 7393	. . . . . . . 8 ⊢ (𝐴𝑀𝐶) ∈ V
138	137	prid1 4707	. . . . . . 7 ⊢ (𝐴𝑀𝐶) ∈ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}
139		supxrub 13267	. . . . . . 7 ⊢ (({(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ⊆ ℝ* ∧ (𝐴𝑀𝐶) ∈ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}) → (𝐴𝑀𝐶) ≤ sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
140	129, 138, 139	sylancl 587	. . . . . 6 ⊢ (𝜑 → (𝐴𝑀𝐶) ≤ sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
141	123, 126, 134, 136, 140	xrletrd 13104	. . . . 5 ⊢ (𝜑 → 0 ≤ sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
142	132, 141	eqbrtrid 5121	. . . 4 ⊢ (𝜑 → sup({0}, ℝ*, < ) ≤ sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
143		supxrun 13259	. . . 4 ⊢ (({0} ⊆ ℝ* ∧ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)} ⊆ ℝ* ∧ sup({0}, ℝ*, < ) ≤ sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < )) → sup(({0} ∪ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}), ℝ*, < ) = sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
144	124, 129, 142, 143	syl3anc 1374	. . 3 ⊢ (𝜑 → sup(({0} ∪ {(𝐴𝑀𝐶), (𝐵𝑁𝐷)}), ℝ*, < ) = sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
145	66, 121, 144	3eqtrd 2776	. 2 ⊢ (𝜑 → ({⟨∅, 𝐴⟩, ⟨1o, 𝐵⟩} (dist‘((Scalar‘𝑅)Xs{⟨∅, 𝑅⟩, ⟨1o, 𝑆⟩})){⟨∅, 𝐶⟩, ⟨1o, 𝐷⟩}) = sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))
146	49, 56, 145	3eqtr3d 2780	1 ⊢ (𝜑 → (⟨𝐴, 𝐵⟩𝑃⟨𝐶, 𝐷⟩) = sup({(𝐴𝑀𝐶), (𝐵𝑁𝐷)}, ℝ*, < ))

Syntax hints:   → wi 4   ↔ wb 206   ∨ wo 848   = wceq 1542   ∈ wcel 2114  ∃wrex 3062  Vcvv 3430   ∪ cun 3888   ⊆ wss 3890  ∅c0 4274  {csn 4568  {cpr 4570  ⟨cop 4574   class class class wbr 5086   ↦ cmpt 5167   Or wor 5531   × cxp 5622  ^◡ccnv 5623  ran crn 5625   ↾ cres 5626  Oncon0 6317   Fn wfn 6487  ⟶wf 6488  –1-1-onto→wf1o 6491  ‘cfv 6492  (class class class)co 7360   ∈ cmpo 7362  1_oc1o 8391  2_oc2o 8392  supcsup 9346  0cc0 11029  ℝ^*cxr 11169   < clt 11170   ≤ cle 11171  Basecbs 17170  Scalarcsca 17214  distcds 17220  X_scprds 17399   ×_s cxps 17461  ∞Metcxmet 21329

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 1912  ax-6 1969  ax-7 2010  ax-8 2116  ax-9 2124  ax-10 2147  ax-11 2163  ax-12 2185  ax-ext 2709  ax-rep 5212  ax-sep 5231  ax-nul 5241  ax-pow 5302  ax-pr 5370  ax-un 7682  ax-cnex 11085  ax-resscn 11086  ax-1cn 11087  ax-icn 11088  ax-addcl 11089  ax-addrcl 11090  ax-mulcl 11091  ax-mulrcl 11092  ax-mulcom 11093  ax-addass 11094  ax-mulass 11095  ax-distr 11096  ax-i2m1 11097  ax-1ne0 11098  ax-1rid 11099  ax-rnegex 11100  ax-rrecex 11101  ax-cnre 11102  ax-pre-lttri 11103  ax-pre-lttrn 11104  ax-pre-ltadd 11105  ax-pre-mulgt0 11106  ax-pre-sup 11107

This theorem depends on definitions:  df-bi 207  df-an 396  df-or 849  df-3or 1088  df-3an 1089  df-tru 1545  df-fal 1555  df-ex 1782  df-nf 1786  df-sb 2069  df-mo 2540  df-eu 2570  df-clab 2716  df-cleq 2729  df-clel 2812  df-nfc 2886  df-ne 2934  df-nel 3038  df-ral 3053  df-rex 3063  df-rmo 3343  df-reu 3344  df-rab 3391  df-v 3432  df-sbc 3730  df-csb 3839  df-dif 3893  df-un 3895  df-in 3897  df-ss 3907  df-pss 3910  df-nul 4275  df-if 4468  df-pw 4544  df-sn 4569  df-pr 4571  df-tp 4573  df-op 4575  df-uni 4852  df-int 4891  df-iun 4936  df-iin 4937  df-br 5087  df-opab 5149  df-mpt 5168  df-tr 5194  df-id 5519  df-eprel 5524  df-po 5532  df-so 5533  df-fr 5577  df-se 5578  df-we 5579  df-xp 5630  df-rel 5631  df-cnv 5632  df-co 5633  df-dm 5634  df-rn 5635  df-res 5636  df-ima 5637  df-pred 6259  df-ord 6320  df-on 6321  df-lim 6322  df-suc 6323  df-iota 6448  df-fun 6494  df-fn 6495  df-f 6496  df-f1 6497  df-fo 6498  df-f1o 6499  df-fv 6500  df-isom 6501  df-riota 7317  df-ov 7363  df-oprab 7364  df-mpo 7365  df-of 7624  df-om 7811  df-1st 7935  df-2nd 7936  df-supp 8104  df-frecs 8224  df-wrecs 8255  df-recs 8304  df-rdg 8342  df-1o 8398  df-2o 8399  df-er 8636  df-map 8768  df-ixp 8839  df-en 8887  df-dom 8888  df-sdom 8889  df-fin 8890  df-fsupp 9268  df-sup 9348  df-inf 9349  df-oi 9418  df-card 9854  df-pnf 11172  df-mnf 11173  df-xr 11174  df-ltxr 11175  df-le 11176  df-sub 11370  df-neg 11371  df-div 11799  df-nn 12166  df-2 12235  df-3 12236  df-4 12237  df-5 12238  df-6 12239  df-7 12240  df-8 12241  df-9 12242  df-n0 12429  df-z 12516  df-dec 12636  df-uz 12780  df-rp 12934  df-xneg 13054  df-xadd 13055  df-xmul 13056  df-icc 13296  df-fz 13453  df-fzo 13600  df-seq 13955  df-hash 14284  df-struct 17108  df-sets 17125  df-slot 17143  df-ndx 17155  df-base 17171  df-ress 17192  df-plusg 17224  df-mulr 17225  df-sca 17227  df-vsca 17228  df-ip 17229  df-tset 17230  df-ple 17231  df-ds 17233  df-hom 17235  df-cco 17236  df-0g 17395  df-gsum 17396  df-prds 17401  df-xrs 17457  df-imas 17463  df-xps 17465  df-mre 17539  df-mrc 17540  df-acs 17542  df-mgm 18599  df-sgrp 18678  df-mnd 18694  df-submnd 18743  df-mulg 19035  df-cntz 19283  df-cmn 19748  df-xmet 21337

This theorem is referenced by:  tmsxpsval  24513