imasleval - Metamath Proof Explorer

	Metamath Proof Explorer		< Previous Next > Nearby theorems
Mirrors > Home > MPE Home > Th. List > imasleval		Structured version Visualization version GIF version

Theorem imasleval 17483

Description: The value of the image structure's ordering when the order is compatible with the mapping function. (Contributed by Mario Carneiro, 24-Feb-2015.)

**Hypotheses**
Ref	Expression
imasless.u	⊢ (𝜑 → 𝑈 = (𝐹 “_s 𝑅))
imasless.v	⊢ (𝜑 → 𝑉 = (Base‘𝑅))
imasless.f	⊢ (𝜑 → 𝐹:𝑉–onto→𝐵)
imasless.r	⊢ (𝜑 → 𝑅 ∈ 𝑍)
imasless.l	⊢ ≤ = (le‘𝑈)
imasleval.n	⊢ 𝑁 = (le‘𝑅)
imasleval.e	⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑)))

**Assertion**
Ref	Expression
imasleval	⊢ ((𝜑 ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌))

Distinct variable groups: 𝑐,𝑑, ≤ 𝑎,𝑏,𝑐,𝑑,𝐹 𝑁,𝑎,𝑏,𝑐,𝑑 𝑉,𝑎,𝑏,𝑐,𝑑 𝑌,𝑑 𝜑,𝑎,𝑏,𝑐,𝑑 𝑋,𝑐,𝑑 Allowed substitution hints: 𝐵(𝑎,𝑏,𝑐,𝑑) 𝑅(𝑎,𝑏,𝑐,𝑑) 𝑈(𝑎,𝑏,𝑐,𝑑) ≤ (𝑎,𝑏) 𝑋(𝑎,𝑏) 𝑌(𝑎,𝑏,𝑐) 𝑍(𝑎,𝑏,𝑐,𝑑)

**Proof of Theorem imasleval**
Step	Hyp	Ref	Expression
1		fveq2 6888	. . . . . . 7 ⊢ (𝑐 = 𝑋 → (𝐹‘𝑐) = (𝐹‘𝑋))
2	1	breq1d 5157	. . . . . 6 ⊢ (𝑐 = 𝑋 → ((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ (𝐹‘𝑋) ≤ (𝐹‘𝑑)))
3		breq1 5150	. . . . . 6 ⊢ (𝑐 = 𝑋 → (𝑐𝑁𝑑 ↔ 𝑋𝑁𝑑))
4	2, 3	bibi12d 345	. . . . 5 ⊢ (𝑐 = 𝑋 → (((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ 𝑐𝑁𝑑) ↔ ((𝐹‘𝑋) ≤ (𝐹‘𝑑) ↔ 𝑋𝑁𝑑)))
5	4	imbi2d 340	. . . 4 ⊢ (𝑐 = 𝑋 → ((𝜑 → ((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ 𝑐𝑁𝑑)) ↔ (𝜑 → ((𝐹‘𝑋) ≤ (𝐹‘𝑑) ↔ 𝑋𝑁𝑑))))
6		fveq2 6888	. . . . . . 7 ⊢ (𝑑 = 𝑌 → (𝐹‘𝑑) = (𝐹‘𝑌))
7	6	breq2d 5159	. . . . . 6 ⊢ (𝑑 = 𝑌 → ((𝐹‘𝑋) ≤ (𝐹‘𝑑) ↔ (𝐹‘𝑋) ≤ (𝐹‘𝑌)))
8		breq2 5151	. . . . . 6 ⊢ (𝑑 = 𝑌 → (𝑋𝑁𝑑 ↔ 𝑋𝑁𝑌))
9	7, 8	bibi12d 345	. . . . 5 ⊢ (𝑑 = 𝑌 → (((𝐹‘𝑋) ≤ (𝐹‘𝑑) ↔ 𝑋𝑁𝑑) ↔ ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌)))
10	9	imbi2d 340	. . . 4 ⊢ (𝑑 = 𝑌 → ((𝜑 → ((𝐹‘𝑋) ≤ (𝐹‘𝑑) ↔ 𝑋𝑁𝑑)) ↔ (𝜑 → ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌))))
11		imasless.f	. . . . . . . . . . . 12 ⊢ (𝜑 → 𝐹:𝑉–onto→𝐵)
12		fofn 6804	. . . . . . . . . . . 12 ⊢ (𝐹:𝑉–onto→𝐵 → 𝐹 Fn 𝑉)
13	11, 12	syl 17	. . . . . . . . . . 11 ⊢ (𝜑 → 𝐹 Fn 𝑉)
14	13	adantr 481	. . . . . . . . . 10 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → 𝐹 Fn 𝑉)
15	14	fndmd 6651	. . . . . . . . 9 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → dom 𝐹 = 𝑉)
16	15	rexeqdv 3326	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (∃𝑎 ∈ dom 𝐹(𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ∃𝑎 ∈ 𝑉 (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
17		fnbrfvb 6941	. . . . . . . . . . . 12 ⊢ ((𝐹 Fn 𝑉 ∧ 𝑎 ∈ 𝑉) → ((𝐹‘𝑎) = (𝐹‘𝑐) ↔ 𝑎𝐹(𝐹‘𝑐)))
18	14, 17	sylan 580	. . . . . . . . . . 11 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) → ((𝐹‘𝑎) = (𝐹‘𝑐) ↔ 𝑎𝐹(𝐹‘𝑐)))
19	18	anbi1d 630	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
20		ancom 461	. . . . . . . . . . . . . . 15 ⊢ ((𝑎𝑁𝑏 ∧ 𝑏𝐹(𝐹‘𝑑)) ↔ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏))
21		vex 3478	. . . . . . . . . . . . . . . . . 18 ⊢ 𝑏 ∈ V
22		fvex 6901	. . . . . . . . . . . . . . . . . 18 ⊢ (𝐹‘𝑑) ∈ V
23	21, 22	breldm 5906	. . . . . . . . . . . . . . . . 17 ⊢ (𝑏𝐹(𝐹‘𝑑) → 𝑏 ∈ dom 𝐹)
24	23	adantr 481	. . . . . . . . . . . . . . . 16 ⊢ ((𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) → 𝑏 ∈ dom 𝐹)
25	24	pm4.71ri 561	. . . . . . . . . . . . . . 15 ⊢ ((𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ (𝑏 ∈ dom 𝐹 ∧ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
26	20, 25	bitri 274	. . . . . . . . . . . . . 14 ⊢ ((𝑎𝑁𝑏 ∧ 𝑏𝐹(𝐹‘𝑑)) ↔ (𝑏 ∈ dom 𝐹 ∧ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
27	26	exbii 1850	. . . . . . . . . . . . 13 ⊢ (∃𝑏(𝑎𝑁𝑏 ∧ 𝑏𝐹(𝐹‘𝑑)) ↔ ∃𝑏(𝑏 ∈ dom 𝐹 ∧ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
28		vex 3478	. . . . . . . . . . . . . 14 ⊢ 𝑎 ∈ V
29	28, 22	brco 5868	. . . . . . . . . . . . 13 ⊢ (𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑) ↔ ∃𝑏(𝑎𝑁𝑏 ∧ 𝑏𝐹(𝐹‘𝑑)))
30		df-rex 3071	. . . . . . . . . . . . 13 ⊢ (∃𝑏 ∈ dom 𝐹(𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ∃𝑏(𝑏 ∈ dom 𝐹 ∧ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
31	27, 29, 30	3bitr4i 302	. . . . . . . . . . . 12 ⊢ (𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑) ↔ ∃𝑏 ∈ dom 𝐹(𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏))
32	14	ad2antrr 724	. . . . . . . . . . . . . . . . . 18 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → 𝐹 Fn 𝑉)
33		fnbrfvb 6941	. . . . . . . . . . . . . . . . . 18 ⊢ ((𝐹 Fn 𝑉 ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑏) = (𝐹‘𝑑) ↔ 𝑏𝐹(𝐹‘𝑑)))
34	32, 33	sylan 580	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) ∧ 𝑏 ∈ 𝑉) → ((𝐹‘𝑏) = (𝐹‘𝑑) ↔ 𝑏𝐹(𝐹‘𝑑)))
35	34	anbi1d 630	. . . . . . . . . . . . . . . 16 ⊢ (((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) ∧ 𝑏 ∈ 𝑉) → (((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
36		imasleval.e	. . . . . . . . . . . . . . . . . . . . . 22 ⊢ ((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉) ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑)))
37	36	3expa 1118	. . . . . . . . . . . . . . . . . . . . 21 ⊢ (((𝜑 ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉)) ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑)))
38	37	an32s 650	. . . . . . . . . . . . . . . . . . . 20 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ (𝑎 ∈ 𝑉 ∧ 𝑏 ∈ 𝑉)) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑)))
39	38	anassrs 468	. . . . . . . . . . . . . . . . . . 19 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑)))
40	39	impl 456	. . . . . . . . . . . . . . . . . 18 ⊢ ((((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) ∧ (𝐹‘𝑏) = (𝐹‘𝑑)) → (𝑎𝑁𝑏 ↔ 𝑐𝑁𝑑))
41	40	pm5.32da 579	. . . . . . . . . . . . . . . . 17 ⊢ (((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ 𝑏 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
42	41	an32s 650	. . . . . . . . . . . . . . . 16 ⊢ (((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) ∧ 𝑏 ∈ 𝑉) → (((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
43	35, 42	bitr3d 280	. . . . . . . . . . . . . . 15 ⊢ (((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) ∧ 𝑏 ∈ 𝑉) → ((𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
44	43	rexbidva 3176	. . . . . . . . . . . . . 14 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (∃𝑏 ∈ 𝑉 (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ∃𝑏 ∈ 𝑉 ((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
45		r19.41v 3188	. . . . . . . . . . . . . 14 ⊢ (∃𝑏 ∈ 𝑉 ((𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑) ↔ (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑))
46	44, 45	bitrdi 286	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (∃𝑏 ∈ 𝑉 (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
47	15	rexeqdv 3326	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (∃𝑏 ∈ dom 𝐹(𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ∃𝑏 ∈ 𝑉 (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
48	47	ad2antrr 724	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (∃𝑏 ∈ dom 𝐹(𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ ∃𝑏 ∈ 𝑉 (𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏)))
49		simprr 771	. . . . . . . . . . . . . . . 16 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → 𝑑 ∈ 𝑉)
50		eqid 2732	. . . . . . . . . . . . . . . 16 ⊢ (𝐹‘𝑑) = (𝐹‘𝑑)
51		fveqeq2 6897	. . . . . . . . . . . . . . . . 17 ⊢ (𝑏 = 𝑑 → ((𝐹‘𝑏) = (𝐹‘𝑑) ↔ (𝐹‘𝑑) = (𝐹‘𝑑)))
52	51	rspcev 3612	. . . . . . . . . . . . . . . 16 ⊢ ((𝑑 ∈ 𝑉 ∧ (𝐹‘𝑑) = (𝐹‘𝑑)) → ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑))
53	49, 50, 52	sylancl 586	. . . . . . . . . . . . . . 15 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑))
54	53	biantrurd 533	. . . . . . . . . . . . . 14 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (𝑐𝑁𝑑 ↔ (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
55	54	ad2antrr 724	. . . . . . . . . . . . 13 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (𝑐𝑁𝑑 ↔ (∃𝑏 ∈ 𝑉 (𝐹‘𝑏) = (𝐹‘𝑑) ∧ 𝑐𝑁𝑑)))
56	46, 48, 55	3bitr4d 310	. . . . . . . . . . . 12 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (∃𝑏 ∈ dom 𝐹(𝑏𝐹(𝐹‘𝑑) ∧ 𝑎𝑁𝑏) ↔ 𝑐𝑁𝑑))
57	31, 56	bitrid 282	. . . . . . . . . . 11 ⊢ ((((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) ∧ (𝐹‘𝑎) = (𝐹‘𝑐)) → (𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑) ↔ 𝑐𝑁𝑑))
58	57	pm5.32da 579	. . . . . . . . . 10 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) → (((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
59	19, 58	bitr3d 280	. . . . . . . . 9 ⊢ (((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) ∧ 𝑎 ∈ 𝑉) → ((𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
60	59	rexbidva 3176	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (∃𝑎 ∈ 𝑉 (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ∃𝑎 ∈ 𝑉 ((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
61	16, 60	bitrd 278	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (∃𝑎 ∈ dom 𝐹(𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ∃𝑎 ∈ 𝑉 ((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
62		fvex 6901	. . . . . . . . . . . 12 ⊢ (𝐹‘𝑐) ∈ V
63	62, 28	brcnv 5880	. . . . . . . . . . 11 ⊢ ((𝐹‘𝑐)^◡𝐹𝑎 ↔ 𝑎𝐹(𝐹‘𝑐))
64	63	anbi1i 624	. . . . . . . . . 10 ⊢ (((𝐹‘𝑐)^◡𝐹𝑎 ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)))
65	28, 62	breldm 5906	. . . . . . . . . . . 12 ⊢ (𝑎𝐹(𝐹‘𝑐) → 𝑎 ∈ dom 𝐹)
66	65	adantr 481	. . . . . . . . . . 11 ⊢ ((𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) → 𝑎 ∈ dom 𝐹)
67	66	pm4.71ri 561	. . . . . . . . . 10 ⊢ ((𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ (𝑎 ∈ dom 𝐹 ∧ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
68	64, 67	bitri 274	. . . . . . . . 9 ⊢ (((𝐹‘𝑐)^◡𝐹𝑎 ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ (𝑎 ∈ dom 𝐹 ∧ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
69	68	exbii 1850	. . . . . . . 8 ⊢ (∃𝑎((𝐹‘𝑐)^◡𝐹𝑎 ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ∃𝑎(𝑎 ∈ dom 𝐹 ∧ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
70	62, 22	brco 5868	. . . . . . . 8 ⊢ ((𝐹‘𝑐)((𝐹 ∘ 𝑁) ∘ ^◡𝐹)(𝐹‘𝑑) ↔ ∃𝑎((𝐹‘𝑐)^◡𝐹𝑎 ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)))
71		df-rex 3071	. . . . . . . 8 ⊢ (∃𝑎 ∈ dom 𝐹(𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ ∃𝑎(𝑎 ∈ dom 𝐹 ∧ (𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑))))
72	69, 70, 71	3bitr4ri 303	. . . . . . 7 ⊢ (∃𝑎 ∈ dom 𝐹(𝑎𝐹(𝐹‘𝑐) ∧ 𝑎(𝐹 ∘ 𝑁)(𝐹‘𝑑)) ↔ (𝐹‘𝑐)((𝐹 ∘ 𝑁) ∘ ^◡𝐹)(𝐹‘𝑑))
73		r19.41v 3188	. . . . . . 7 ⊢ (∃𝑎 ∈ 𝑉 ((𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑) ↔ (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑))
74	61, 72, 73	3bitr3g 312	. . . . . 6 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ((𝐹‘𝑐)((𝐹 ∘ 𝑁) ∘ ^◡𝐹)(𝐹‘𝑑) ↔ (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
75		imasless.u	. . . . . . . . 9 ⊢ (𝜑 → 𝑈 = (𝐹 “_s 𝑅))
76		imasless.v	. . . . . . . . 9 ⊢ (𝜑 → 𝑉 = (Base‘𝑅))
77		imasless.r	. . . . . . . . 9 ⊢ (𝜑 → 𝑅 ∈ 𝑍)
78		imasleval.n	. . . . . . . . 9 ⊢ 𝑁 = (le‘𝑅)
79		imasless.l	. . . . . . . . 9 ⊢ ≤ = (le‘𝑈)
80	75, 76, 11, 77, 78, 79	imasle 17465	. . . . . . . 8 ⊢ (𝜑 → ≤ = ((𝐹 ∘ 𝑁) ∘ ^◡𝐹))
81	80	adantr 481	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ≤ = ((𝐹 ∘ 𝑁) ∘ ^◡𝐹))
82	81	breqd 5158	. . . . . 6 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ (𝐹‘𝑐)((𝐹 ∘ 𝑁) ∘ ^◡𝐹)(𝐹‘𝑑)))
83		simprl 769	. . . . . . . 8 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → 𝑐 ∈ 𝑉)
84		eqid 2732	. . . . . . . 8 ⊢ (𝐹‘𝑐) = (𝐹‘𝑐)
85		fveqeq2 6897	. . . . . . . . 9 ⊢ (𝑎 = 𝑐 → ((𝐹‘𝑎) = (𝐹‘𝑐) ↔ (𝐹‘𝑐) = (𝐹‘𝑐)))
86	85	rspcev 3612	. . . . . . . 8 ⊢ ((𝑐 ∈ 𝑉 ∧ (𝐹‘𝑐) = (𝐹‘𝑐)) → ∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = (𝐹‘𝑐))
87	83, 84, 86	sylancl 586	. . . . . . 7 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = (𝐹‘𝑐))
88	87	biantrurd 533	. . . . . 6 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → (𝑐𝑁𝑑 ↔ (∃𝑎 ∈ 𝑉 (𝐹‘𝑎) = (𝐹‘𝑐) ∧ 𝑐𝑁𝑑)))
89	74, 82, 88	3bitr4d 310	. . . . 5 ⊢ ((𝜑 ∧ (𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉)) → ((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ 𝑐𝑁𝑑))
90	89	expcom 414	. . . 4 ⊢ ((𝑐 ∈ 𝑉 ∧ 𝑑 ∈ 𝑉) → (𝜑 → ((𝐹‘𝑐) ≤ (𝐹‘𝑑) ↔ 𝑐𝑁𝑑)))
91	5, 10, 90	vtocl2ga 3566	. . 3 ⊢ ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → (𝜑 → ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌)))
92	91	com12 32	. 2 ⊢ (𝜑 → ((𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌)))
93	92	3impib 1116	1 ⊢ ((𝜑 ∧ 𝑋 ∈ 𝑉 ∧ 𝑌 ∈ 𝑉) → ((𝐹‘𝑋) ≤ (𝐹‘𝑌) ↔ 𝑋𝑁𝑌))

Colors of variables: wff setvar class

Syntax hints: → wi 4 ↔ wb 205 ∧ wa 396 ∧ w3a 1087 = wceq 1541 ∃wex 1781 ∈ wcel 2106 ∃wrex 3070 class class class wbr 5147 ^◡ccnv 5674 dom cdm 5675 ∘ ccom 5679 Fn wfn 6535 –onto→wfo 6538 ‘cfv 6540 (class class class)co 7405 Basecbs 17140 lecple 17200 “_s cimas 17446

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 1913 ax-6 1971 ax-7 2011 ax-8 2108 ax-9 2116 ax-10 2137 ax-11 2154 ax-12 2171 ax-ext 2703 ax-rep 5284 ax-sep 5298 ax-nul 5305 ax-pow 5362 ax-pr 5426 ax-un 7721 ax-cnex 11162 ax-resscn 11163 ax-1cn 11164 ax-icn 11165 ax-addcl 11166 ax-addrcl 11167 ax-mulcl 11168 ax-mulrcl 11169 ax-mulcom 11170 ax-addass 11171 ax-mulass 11172 ax-distr 11173 ax-i2m1 11174 ax-1ne0 11175 ax-1rid 11176 ax-rnegex 11177 ax-rrecex 11178 ax-cnre 11179 ax-pre-lttri 11180 ax-pre-lttrn 11181 ax-pre-ltadd 11182 ax-pre-mulgt0 11183

This theorem depends on definitions: df-bi 206 df-an 397 df-or 846 df-3or 1088 df-3an 1089 df-tru 1544 df-fal 1554 df-ex 1782 df-nf 1786 df-sb 2068 df-mo 2534 df-eu 2563 df-clab 2710 df-cleq 2724 df-clel 2810 df-nfc 2885 df-ne 2941 df-nel 3047 df-ral 3062 df-rex 3071 df-reu 3377 df-rab 3433 df-v 3476 df-sbc 3777 df-csb 3893 df-dif 3950 df-un 3952 df-in 3954 df-ss 3964 df-pss 3966 df-nul 4322 df-if 4528 df-pw 4603 df-sn 4628 df-pr 4630 df-tp 4632 df-op 4634 df-uni 4908 df-iun 4998 df-br 5148 df-opab 5210 df-mpt 5231 df-tr 5265 df-id 5573 df-eprel 5579 df-po 5587 df-so 5588 df-fr 5630 df-we 5632 df-xp 5681 df-rel 5682 df-cnv 5683 df-co 5684 df-dm 5685 df-rn 5686 df-res 5687 df-ima 5688 df-pred 6297 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6492 df-fun 6542 df-fn 6543 df-f 6544 df-f1 6545 df-fo 6546 df-f1o 6547 df-fv 6548 df-riota 7361 df-ov 7408 df-oprab 7409 df-mpo 7410 df-om 7852 df-1st 7971 df-2nd 7972 df-frecs 8262 df-wrecs 8293 df-recs 8367 df-rdg 8406 df-1o 8462 df-er 8699 df-en 8936 df-dom 8937 df-sdom 8938 df-fin 8939 df-sup 9433 df-inf 9434 df-pnf 11246 df-mnf 11247 df-xr 11248 df-ltxr 11249 df-le 11250 df-sub 11442 df-neg 11443 df-nn 12209 df-2 12271 df-3 12272 df-4 12273 df-5 12274 df-6 12275 df-7 12276 df-8 12277 df-9 12278 df-n0 12469 df-z 12555 df-dec 12674 df-uz 12819 df-fz 13481 df-struct 17076 df-slot 17111 df-ndx 17123 df-base 17141 df-plusg 17206 df-mulr 17207 df-sca 17209 df-vsca 17210 df-ip 17211 df-tset 17212 df-ple 17213 df-ds 17215 df-imas 17450

This theorem is referenced by: xpsle 17521

W3C validator