ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  cnptoprest2 GIF version

Theorem cnptoprest2 12190
Description: Equivalence of point-continuity in the parent topology and point-continuity in a subspace. (Contributed by Mario Carneiro, 9-Aug-2014.) (Revised by Jim Kingdon, 6-Apr-2023.)
Hypotheses
Ref Expression
cnprest.1 𝑋 = 𝐽
cnprest.2 𝑌 = 𝐾
Assertion
Ref Expression
cnptoprest2 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)))

Proof of Theorem cnptoprest2
Dummy variables 𝑥 𝑦 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 cnprest.1 . . . . . . . 8 𝑋 = 𝐽
21toptopon 11967 . . . . . . 7 (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘𝑋))
32biimpi 119 . . . . . 6 (𝐽 ∈ Top → 𝐽 ∈ (TopOn‘𝑋))
43ad2antrr 475 . . . . 5 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝐽 ∈ (TopOn‘𝑋))
54adantr 272 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃)) → 𝐽 ∈ (TopOn‘𝑋))
6 simplr 500 . . . . 5 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝐾 ∈ Top)
76adantr 272 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃)) → 𝐾 ∈ Top)
8 simpr 109 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃)) → 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃))
9 cnprcl2k 12156 . . . 4 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ Top ∧ 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃)) → 𝑃𝑋)
105, 7, 8, 9syl3anc 1184 . . 3 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃)) → 𝑃𝑋)
1110ex 114 . 2 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) → 𝑃𝑋))
124adantr 272 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)) → 𝐽 ∈ (TopOn‘𝑋))
13 cnprest.2 . . . . . . . . 9 𝑌 = 𝐾
14 uniexg 4299 . . . . . . . . 9 (𝐾 ∈ Top → 𝐾 ∈ V)
1513, 14syl5eqel 2186 . . . . . . . 8 (𝐾 ∈ Top → 𝑌 ∈ V)
166, 15syl 14 . . . . . . 7 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝑌 ∈ V)
17 simprr 502 . . . . . . 7 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝐵𝑌)
1816, 17ssexd 4008 . . . . . 6 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝐵 ∈ V)
19 resttop 12121 . . . . . 6 ((𝐾 ∈ Top ∧ 𝐵 ∈ V) → (𝐾t 𝐵) ∈ Top)
206, 18, 19syl2anc 406 . . . . 5 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝐾t 𝐵) ∈ Top)
2120adantr 272 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)) → (𝐾t 𝐵) ∈ Top)
22 simpr 109 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)) → 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃))
23 cnprcl2k 12156 . . . 4 ((𝐽 ∈ (TopOn‘𝑋) ∧ (𝐾t 𝐵) ∈ Top ∧ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)) → 𝑃𝑋)
2412, 21, 22, 23syl3anc 1184 . . 3 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)) → 𝑃𝑋)
2524ex 114 . 2 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃) → 𝑃𝑋))
26 simprl 501 . . . . . . . . . 10 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → 𝐹:𝑋𝐵)
2726ffvelrnda 5487 . . . . . . . . 9 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹𝑃) ∈ 𝐵)
2827biantrud 300 . . . . . . . 8 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ((𝐹𝑃) ∈ 𝑥 ↔ ((𝐹𝑃) ∈ 𝑥 ∧ (𝐹𝑃) ∈ 𝐵)))
29 elin 3206 . . . . . . . 8 ((𝐹𝑃) ∈ (𝑥𝐵) ↔ ((𝐹𝑃) ∈ 𝑥 ∧ (𝐹𝑃) ∈ 𝐵))
3028, 29syl6bbr 197 . . . . . . 7 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ((𝐹𝑃) ∈ 𝑥 ↔ (𝐹𝑃) ∈ (𝑥𝐵)))
31 imassrn 4828 . . . . . . . . . . . 12 (𝐹𝑦) ⊆ ran 𝐹
32 simplrl 505 . . . . . . . . . . . . 13 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐹:𝑋𝐵)
3332frnd 5218 . . . . . . . . . . . 12 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ran 𝐹𝐵)
3431, 33syl5ss 3058 . . . . . . . . . . 11 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹𝑦) ⊆ 𝐵)
3534biantrud 300 . . . . . . . . . 10 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ((𝐹𝑦) ⊆ 𝑥 ↔ ((𝐹𝑦) ⊆ 𝑥 ∧ (𝐹𝑦) ⊆ 𝐵)))
36 ssin 3245 . . . . . . . . . 10 (((𝐹𝑦) ⊆ 𝑥 ∧ (𝐹𝑦) ⊆ 𝐵) ↔ (𝐹𝑦) ⊆ (𝑥𝐵))
3735, 36syl6bb 195 . . . . . . . . 9 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ((𝐹𝑦) ⊆ 𝑥 ↔ (𝐹𝑦) ⊆ (𝑥𝐵)))
3837anbi2d 455 . . . . . . . 8 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → ((𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥) ↔ (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵))))
3938rexbidv 2397 . . . . . . 7 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥) ↔ ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵))))
4030, 39imbi12d 233 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)) ↔ ((𝐹𝑃) ∈ (𝑥𝐵) → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵)))))
4140ralbidv 2396 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)) ↔ ∀𝑥𝐾 ((𝐹𝑃) ∈ (𝑥𝐵) → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵)))))
42 vex 2644 . . . . . . . 8 𝑥 ∈ V
4342inex1 4002 . . . . . . 7 (𝑥𝐵) ∈ V
4443a1i 9 . . . . . 6 (((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) ∧ 𝑥𝐾) → (𝑥𝐵) ∈ V)
456adantr 272 . . . . . . 7 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐾 ∈ Top)
4618adantr 272 . . . . . . 7 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐵 ∈ V)
47 elrest 11909 . . . . . . 7 ((𝐾 ∈ Top ∧ 𝐵 ∈ V) → (𝑧 ∈ (𝐾t 𝐵) ↔ ∃𝑥𝐾 𝑧 = (𝑥𝐵)))
4845, 46, 47syl2anc 406 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝑧 ∈ (𝐾t 𝐵) ↔ ∃𝑥𝐾 𝑧 = (𝑥𝐵)))
49 eleq2 2163 . . . . . . . 8 (𝑧 = (𝑥𝐵) → ((𝐹𝑃) ∈ 𝑧 ↔ (𝐹𝑃) ∈ (𝑥𝐵)))
50 sseq2 3071 . . . . . . . . . 10 (𝑧 = (𝑥𝐵) → ((𝐹𝑦) ⊆ 𝑧 ↔ (𝐹𝑦) ⊆ (𝑥𝐵)))
5150anbi2d 455 . . . . . . . . 9 (𝑧 = (𝑥𝐵) → ((𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧) ↔ (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵))))
5251rexbidv 2397 . . . . . . . 8 (𝑧 = (𝑥𝐵) → (∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧) ↔ ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵))))
5349, 52imbi12d 233 . . . . . . 7 (𝑧 = (𝑥𝐵) → (((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)) ↔ ((𝐹𝑃) ∈ (𝑥𝐵) → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵)))))
5453adantl 273 . . . . . 6 (((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) ∧ 𝑧 = (𝑥𝐵)) → (((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)) ↔ ((𝐹𝑃) ∈ (𝑥𝐵) → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵)))))
5544, 48, 54ralxfr2d 4323 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)) ↔ ∀𝑥𝐾 ((𝐹𝑃) ∈ (𝑥𝐵) → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ (𝑥𝐵)))))
5641, 55bitr4d 190 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)) ↔ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧))))
574adantr 272 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐽 ∈ (TopOn‘𝑋))
5813toptopon 11967 . . . . . . 7 (𝐾 ∈ Top ↔ 𝐾 ∈ (TopOn‘𝑌))
5945, 58sylib 121 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐾 ∈ (TopOn‘𝑌))
60 simpr 109 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝑃𝑋)
61 iscnp 12149 . . . . . 6 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐾 ∈ (TopOn‘𝑌) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ (𝐹:𝑋𝑌 ∧ ∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)))))
6257, 59, 60, 61syl3anc 1184 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ (𝐹:𝑋𝑌 ∧ ∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)))))
6317adantr 272 . . . . . . 7 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐵𝑌)
6432, 63fssd 5221 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → 𝐹:𝑋𝑌)
6564biantrurd 301 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)) ↔ (𝐹:𝑋𝑌 ∧ ∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥)))))
6662, 65bitr4d 190 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ ∀𝑥𝐾 ((𝐹𝑃) ∈ 𝑥 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑥))))
67 resttopon 12122 . . . . . . 7 ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐵𝑌) → (𝐾t 𝐵) ∈ (TopOn‘𝐵))
6859, 63, 67syl2anc 406 . . . . . 6 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐾t 𝐵) ∈ (TopOn‘𝐵))
69 iscnp 12149 . . . . . 6 ((𝐽 ∈ (TopOn‘𝑋) ∧ (𝐾t 𝐵) ∈ (TopOn‘𝐵) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃) ↔ (𝐹:𝑋𝐵 ∧ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)))))
7057, 68, 60, 69syl3anc 1184 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃) ↔ (𝐹:𝑋𝐵 ∧ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)))))
7126biantrurd 301 . . . . . 6 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)) ↔ (𝐹:𝑋𝐵 ∧ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)))))
7271adantr 272 . . . . 5 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)) ↔ (𝐹:𝑋𝐵 ∧ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧)))))
7370, 72bitr4d 190 . . . 4 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃) ↔ ∀𝑧 ∈ (𝐾t 𝐵)((𝐹𝑃) ∈ 𝑧 → ∃𝑦𝐽 (𝑃𝑦 ∧ (𝐹𝑦) ⊆ 𝑧))))
7456, 66, 733bitr4d 219 . . 3 ((((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) ∧ 𝑃𝑋) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)))
7574ex 114 . 2 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝑃𝑋 → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃))))
7611, 25, 75pm5.21ndd 662 1 (((𝐽 ∈ Top ∧ 𝐾 ∈ Top) ∧ (𝐹:𝑋𝐵𝐵𝑌)) → (𝐹 ∈ ((𝐽 CnP 𝐾)‘𝑃) ↔ 𝐹 ∈ ((𝐽 CnP (𝐾t 𝐵))‘𝑃)))
Colors of variables: wff set class
Syntax hints:  wi 4  wa 103  wb 104   = wceq 1299  wcel 1448  wral 2375  wrex 2376  Vcvv 2641  cin 3020  wss 3021   cuni 3683  ran crn 4478  cima 4480  wf 5055  cfv 5059  (class class class)co 5706  t crest 11902  Topctop 11946  TopOnctopon 11959   CnP ccnp 12137
This theorem was proved from axioms:  ax-1 5  ax-2 6  ax-mp 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-in1 584  ax-in2 585  ax-io 671  ax-5 1391  ax-7 1392  ax-gen 1393  ax-ie1 1437  ax-ie2 1438  ax-8 1450  ax-10 1451  ax-11 1452  ax-i12 1453  ax-bndl 1454  ax-4 1455  ax-13 1459  ax-14 1460  ax-17 1474  ax-i9 1478  ax-ial 1482  ax-i5r 1483  ax-ext 2082  ax-coll 3983  ax-sep 3986  ax-pow 4038  ax-pr 4069  ax-un 4293  ax-setind 4390
This theorem depends on definitions:  df-bi 116  df-3an 932  df-tru 1302  df-fal 1305  df-nf 1405  df-sb 1704  df-eu 1963  df-mo 1964  df-clab 2087  df-cleq 2093  df-clel 2096  df-nfc 2229  df-ne 2268  df-ral 2380  df-rex 2381  df-reu 2382  df-rab 2384  df-v 2643  df-sbc 2863  df-csb 2956  df-dif 3023  df-un 3025  df-in 3027  df-ss 3034  df-pw 3459  df-sn 3480  df-pr 3481  df-op 3483  df-uni 3684  df-iun 3762  df-br 3876  df-opab 3930  df-mpt 3931  df-id 4153  df-xp 4483  df-rel 4484  df-cnv 4485  df-co 4486  df-dm 4487  df-rn 4488  df-res 4489  df-ima 4490  df-iota 5024  df-fun 5061  df-fn 5062  df-f 5063  df-f1 5064  df-fo 5065  df-f1o 5066  df-fv 5067  df-ov 5709  df-oprab 5710  df-mpo 5711  df-1st 5969  df-2nd 5970  df-map 6474  df-rest 11904  df-topgen 11923  df-top 11947  df-topon 11960  df-bases 11992  df-cnp 12140
This theorem is referenced by: (None)
  Copyright terms: Public domain W3C validator