Theorem ismre 16250

Description: Property of being a Moore collection on some base set. (Contributed by Stefan O'Rear, 30-Jan-2015.)

Assertion

Ref	Expression
ismre	⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))

Distinct variable groups:   𝐶,𝑠   𝑋,𝑠

Proof of Theorem ismre

Dummy variables 𝑐 𝑥 are mutually distinct and distinct from all other variables.

Step	Hyp	Ref	Expression
1		elfvex 6221	. 2 ⊢ (𝐶 ∈ (Moore‘𝑋) → 𝑋 ∈ V)
2		elex 3212	. . 3 ⊢ (𝑋 ∈ 𝐶 → 𝑋 ∈ V)
3	2	3ad2ant2 1083	. 2 ⊢ ((𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) → 𝑋 ∈ V)
4		pweq 4161	. . . . . . 7 ⊢ (𝑥 = 𝑋 → 𝒫 𝑥 = 𝒫 𝑋)
5	4	pweqd 4163	. . . . . 6 ⊢ (𝑥 = 𝑋 → 𝒫 𝒫 𝑥 = 𝒫 𝒫 𝑋)
6		eleq1 2689	. . . . . . 7 ⊢ (𝑥 = 𝑋 → (𝑥 ∈ 𝑐 ↔ 𝑋 ∈ 𝑐))
7	6	anbi1d 741	. . . . . 6 ⊢ (𝑥 = 𝑋 → ((𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐)) ↔ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))))
8	5, 7	rabeqbidv 3195	. . . . 5 ⊢ (𝑥 = 𝑋 → {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} = {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
9		df-mre 16246	. . . . 5 ⊢ Moore = (𝑥 ∈ V ↦ {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
10		vpwex 4849	. . . . . . 7 ⊢ 𝒫 𝑥 ∈ V
11	10	pwex 4848	. . . . . 6 ⊢ 𝒫 𝒫 𝑥 ∈ V
12	11	rabex 4813	. . . . 5 ⊢ {𝑐 ∈ 𝒫 𝒫 𝑥 ∣ (𝑥 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ∈ V
13	8, 9, 12	fvmpt3i 6287	. . . 4 ⊢ (𝑋 ∈ V → (Moore‘𝑋) = {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))})
14	13	eleq2d 2687	. . 3 ⊢ (𝑋 ∈ V → (𝐶 ∈ (Moore‘𝑋) ↔ 𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))}))
15		eleq2 2690	. . . . . 6 ⊢ (𝑐 = 𝐶 → (𝑋 ∈ 𝑐 ↔ 𝑋 ∈ 𝐶))
16		pweq 4161	. . . . . . 7 ⊢ (𝑐 = 𝐶 → 𝒫 𝑐 = 𝒫 𝐶)
17		eleq2 2690	. . . . . . . 8 ⊢ (𝑐 = 𝐶 → (∩ 𝑠 ∈ 𝑐 ↔ ∩ 𝑠 ∈ 𝐶))
18	17	imbi2d 330	. . . . . . 7 ⊢ (𝑐 = 𝐶 → ((𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐) ↔ (𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))
19	16, 18	raleqbidv 3152	. . . . . 6 ⊢ (𝑐 = 𝐶 → (∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐) ↔ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))
20	15, 19	anbi12d 747	. . . . 5 ⊢ (𝑐 = 𝐶 → ((𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐)) ↔ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
21	20	elrab 3363	. . . 4 ⊢ (𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ↔ (𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
22	21	a1i 11	. . 3 ⊢ (𝑋 ∈ V → (𝐶 ∈ {𝑐 ∈ 𝒫 𝒫 𝑋 ∣ (𝑋 ∈ 𝑐 ∧ ∀𝑠 ∈ 𝒫 𝑐(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝑐))} ↔ (𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))))
23		pwexg 4850	. . . . . 6 ⊢ (𝑋 ∈ V → 𝒫 𝑋 ∈ V)
24		elpw2g 4827	. . . . . 6 ⊢ (𝒫 𝑋 ∈ V → (𝐶 ∈ 𝒫 𝒫 𝑋 ↔ 𝐶 ⊆ 𝒫 𝑋))
25	23, 24	syl 17	. . . . 5 ⊢ (𝑋 ∈ V → (𝐶 ∈ 𝒫 𝒫 𝑋 ↔ 𝐶 ⊆ 𝒫 𝑋))
26	25	anbi1d 741	. . . 4 ⊢ (𝑋 ∈ V → ((𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))))
27		3anass 1042	. . . 4 ⊢ ((𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
28	26, 27	syl6bbr 278	. . 3 ⊢ (𝑋 ∈ V → ((𝐶 ∈ 𝒫 𝒫 𝑋 ∧ (𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
29	14, 22, 28	3bitrd 294	. 2 ⊢ (𝑋 ∈ V → (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶))))
30	1, 3, 29	pm5.21nii 368	1 ⊢ (𝐶 ∈ (Moore‘𝑋) ↔ (𝐶 ⊆ 𝒫 𝑋 ∧ 𝑋 ∈ 𝐶 ∧ ∀𝑠 ∈ 𝒫 𝐶(𝑠 ≠ ∅ → ∩ 𝑠 ∈ 𝐶)))

Syntax hints:   → wi 4   ↔ wb 196   ∧ wa 384   ∧ w3a 1037   = wceq 1483   ∈ wcel 1990   ≠ wne 2794  ∀wral 2912  {crab 2916  Vcvv 3200   ⊆ wss 3574  ∅c0 3915  𝒫 cpw 4158  ∩ cint 4475  ‘cfv 5888  Moorecmre 16242

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1722  ax-4 1737  ax-5 1839  ax-6 1888  ax-7 1935  ax-8 1992  ax-9 1999  ax-10 2019  ax-11 2034  ax-12 2047  ax-13 2246  ax-ext 2602  ax-sep 4781  ax-nul 4789  ax-pow 4843  ax-pr 4906

This theorem depends on definitions:  df-bi 197  df-or 385  df-an 386  df-3an 1039  df-tru 1486  df-ex 1705  df-nf 1710  df-sb 1881  df-eu 2474  df-mo 2475  df-clab 2609  df-cleq 2615  df-clel 2618  df-nfc 2753  df-ne 2795  df-ral 2917  df-rex 2918  df-rab 2921  df-v 3202  df-sbc 3436  df-dif 3577  df-un 3579  df-in 3581  df-ss 3588  df-nul 3916  df-if 4087  df-pw 4160  df-sn 4178  df-pr 4180  df-op 4184  df-uni 4437  df-br 4654  df-opab 4713  df-mpt 4730  df-id 5024  df-xp 5120  df-rel 5121  df-cnv 5122  df-co 5123  df-dm 5124  df-iota 5851  df-fun 5890  df-fv 5896  df-mre 16246

This theorem is referenced by:  mresspw  16252  mre1cl  16254  mreintcl  16255  ismred  16262