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Theorem kqreglem2 22350
Description: If the Kolmogorov quotient of a space is regular then so is the original space. (Contributed by Mario Carneiro, 25-Aug-2015.)
Hypothesis
Ref Expression
kqval.2 𝐹 = (𝑥𝑋 ↦ {𝑦𝐽𝑥𝑦})
Assertion
Ref Expression
kqreglem2 ((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) → 𝐽 ∈ Reg)
Distinct variable groups:   𝑥,𝑦,𝐽   𝑥,𝑋,𝑦
Allowed substitution hints:   𝐹(𝑥,𝑦)

Proof of Theorem kqreglem2
Dummy variables 𝑚 𝑛 𝑤 𝑧 are mutually distinct and distinct from all other variables.
StepHypRef Expression
1 topontop 21521 . . 3 (𝐽 ∈ (TopOn‘𝑋) → 𝐽 ∈ Top)
21adantr 484 . 2 ((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) → 𝐽 ∈ Top)
3 simplr 768 . . . . 5 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → (KQ‘𝐽) ∈ Reg)
4 simpll 766 . . . . . 6 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → 𝐽 ∈ (TopOn‘𝑋))
5 simprl 770 . . . . . 6 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → 𝑧𝐽)
6 kqval.2 . . . . . . 7 𝐹 = (𝑥𝑋 ↦ {𝑦𝐽𝑥𝑦})
76kqopn 22342 . . . . . 6 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑧𝐽) → (𝐹𝑧) ∈ (KQ‘𝐽))
84, 5, 7syl2anc 587 . . . . 5 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → (𝐹𝑧) ∈ (KQ‘𝐽))
9 simprr 772 . . . . . 6 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → 𝑤𝑧)
10 toponss 21535 . . . . . . . . 9 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑧𝐽) → 𝑧𝑋)
114, 5, 10syl2anc 587 . . . . . . . 8 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → 𝑧𝑋)
1211, 9sseldd 3954 . . . . . . 7 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → 𝑤𝑋)
136kqfvima 22338 . . . . . . 7 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑧𝐽𝑤𝑋) → (𝑤𝑧 ↔ (𝐹𝑤) ∈ (𝐹𝑧)))
144, 5, 12, 13syl3anc 1368 . . . . . 6 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → (𝑤𝑧 ↔ (𝐹𝑤) ∈ (𝐹𝑧)))
159, 14mpbid 235 . . . . 5 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → (𝐹𝑤) ∈ (𝐹𝑧))
16 regsep 21942 . . . . 5 (((KQ‘𝐽) ∈ Reg ∧ (𝐹𝑧) ∈ (KQ‘𝐽) ∧ (𝐹𝑤) ∈ (𝐹𝑧)) → ∃𝑛 ∈ (KQ‘𝐽)((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))
173, 8, 15, 16syl3anc 1368 . . . 4 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → ∃𝑛 ∈ (KQ‘𝐽)((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))
184adantr 484 . . . . . . 7 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝐽 ∈ (TopOn‘𝑋))
196kqid 22336 . . . . . . 7 (𝐽 ∈ (TopOn‘𝑋) → 𝐹 ∈ (𝐽 Cn (KQ‘𝐽)))
2018, 19syl 17 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝐹 ∈ (𝐽 Cn (KQ‘𝐽)))
21 simprl 770 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑛 ∈ (KQ‘𝐽))
22 cnima 21873 . . . . . 6 ((𝐹 ∈ (𝐽 Cn (KQ‘𝐽)) ∧ 𝑛 ∈ (KQ‘𝐽)) → (𝐹𝑛) ∈ 𝐽)
2320, 21, 22syl2anc 587 . . . . 5 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹𝑛) ∈ 𝐽)
2412adantr 484 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑤𝑋)
25 simprrl 780 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹𝑤) ∈ 𝑛)
266kqffn 22333 . . . . . . 7 (𝐽 ∈ (TopOn‘𝑋) → 𝐹 Fn 𝑋)
27 elpreima 6819 . . . . . . 7 (𝐹 Fn 𝑋 → (𝑤 ∈ (𝐹𝑛) ↔ (𝑤𝑋 ∧ (𝐹𝑤) ∈ 𝑛)))
2818, 26, 273syl 18 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝑤 ∈ (𝐹𝑛) ↔ (𝑤𝑋 ∧ (𝐹𝑤) ∈ 𝑛)))
2924, 25, 28mpbir2and 712 . . . . 5 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑤 ∈ (𝐹𝑛))
306kqtopon 22335 . . . . . . . . . 10 (𝐽 ∈ (TopOn‘𝑋) → (KQ‘𝐽) ∈ (TopOn‘ran 𝐹))
31 topontop 21521 . . . . . . . . . 10 ((KQ‘𝐽) ∈ (TopOn‘ran 𝐹) → (KQ‘𝐽) ∈ Top)
3218, 30, 313syl 18 . . . . . . . . 9 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (KQ‘𝐽) ∈ Top)
33 elssuni 4854 . . . . . . . . . 10 (𝑛 ∈ (KQ‘𝐽) → 𝑛 (KQ‘𝐽))
3433ad2antrl 727 . . . . . . . . 9 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑛 (KQ‘𝐽))
35 eqid 2824 . . . . . . . . . 10 (KQ‘𝐽) = (KQ‘𝐽)
3635clscld 21655 . . . . . . . . 9 (((KQ‘𝐽) ∈ Top ∧ 𝑛 (KQ‘𝐽)) → ((cls‘(KQ‘𝐽))‘𝑛) ∈ (Clsd‘(KQ‘𝐽)))
3732, 34, 36syl2anc 587 . . . . . . . 8 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → ((cls‘(KQ‘𝐽))‘𝑛) ∈ (Clsd‘(KQ‘𝐽)))
38 cnclima 21876 . . . . . . . 8 ((𝐹 ∈ (𝐽 Cn (KQ‘𝐽)) ∧ ((cls‘(KQ‘𝐽))‘𝑛) ∈ (Clsd‘(KQ‘𝐽))) → (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ∈ (Clsd‘𝐽))
3920, 37, 38syl2anc 587 . . . . . . 7 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ∈ (Clsd‘𝐽))
4035sscls 21664 . . . . . . . . 9 (((KQ‘𝐽) ∈ Top ∧ 𝑛 (KQ‘𝐽)) → 𝑛 ⊆ ((cls‘(KQ‘𝐽))‘𝑛))
4132, 34, 40syl2anc 587 . . . . . . . 8 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑛 ⊆ ((cls‘(KQ‘𝐽))‘𝑛))
42 imass2 5952 . . . . . . . 8 (𝑛 ⊆ ((cls‘(KQ‘𝐽))‘𝑛) → (𝐹𝑛) ⊆ (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)))
4341, 42syl 17 . . . . . . 7 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹𝑛) ⊆ (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)))
44 eqid 2824 . . . . . . . 8 𝐽 = 𝐽
4544clsss2 21680 . . . . . . 7 (((𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ∈ (Clsd‘𝐽) ∧ (𝐹𝑛) ⊆ (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛))) → ((cls‘𝐽)‘(𝐹𝑛)) ⊆ (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)))
4639, 43, 45syl2anc 587 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → ((cls‘𝐽)‘(𝐹𝑛)) ⊆ (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)))
47 simprrr 781 . . . . . . . 8 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧))
48 imass2 5952 . . . . . . . 8 (((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧) → (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ⊆ (𝐹 “ (𝐹𝑧)))
4947, 48syl 17 . . . . . . 7 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ⊆ (𝐹 “ (𝐹𝑧)))
505adantr 484 . . . . . . . 8 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → 𝑧𝐽)
516kqsat 22339 . . . . . . . 8 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝑧𝐽) → (𝐹 “ (𝐹𝑧)) = 𝑧)
5218, 50, 51syl2anc 587 . . . . . . 7 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹 “ (𝐹𝑧)) = 𝑧)
5349, 52sseqtrd 3993 . . . . . 6 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → (𝐹 “ ((cls‘(KQ‘𝐽))‘𝑛)) ⊆ 𝑧)
5446, 53sstrd 3963 . . . . 5 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → ((cls‘𝐽)‘(𝐹𝑛)) ⊆ 𝑧)
55 eleq2 2904 . . . . . . 7 (𝑚 = (𝐹𝑛) → (𝑤𝑚𝑤 ∈ (𝐹𝑛)))
56 fveq2 6661 . . . . . . . 8 (𝑚 = (𝐹𝑛) → ((cls‘𝐽)‘𝑚) = ((cls‘𝐽)‘(𝐹𝑛)))
5756sseq1d 3984 . . . . . . 7 (𝑚 = (𝐹𝑛) → (((cls‘𝐽)‘𝑚) ⊆ 𝑧 ↔ ((cls‘𝐽)‘(𝐹𝑛)) ⊆ 𝑧))
5855, 57anbi12d 633 . . . . . 6 (𝑚 = (𝐹𝑛) → ((𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧) ↔ (𝑤 ∈ (𝐹𝑛) ∧ ((cls‘𝐽)‘(𝐹𝑛)) ⊆ 𝑧)))
5958rspcev 3609 . . . . 5 (((𝐹𝑛) ∈ 𝐽 ∧ (𝑤 ∈ (𝐹𝑛) ∧ ((cls‘𝐽)‘(𝐹𝑛)) ⊆ 𝑧)) → ∃𝑚𝐽 (𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧))
6023, 29, 54, 59syl12anc 835 . . . 4 ((((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) ∧ (𝑛 ∈ (KQ‘𝐽) ∧ ((𝐹𝑤) ∈ 𝑛 ∧ ((cls‘(KQ‘𝐽))‘𝑛) ⊆ (𝐹𝑧)))) → ∃𝑚𝐽 (𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧))
6117, 60rexlimddv 3283 . . 3 (((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) ∧ (𝑧𝐽𝑤𝑧)) → ∃𝑚𝐽 (𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧))
6261ralrimivva 3186 . 2 ((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) → ∀𝑧𝐽𝑤𝑧𝑚𝐽 (𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧))
63 isreg 21940 . 2 (𝐽 ∈ Reg ↔ (𝐽 ∈ Top ∧ ∀𝑧𝐽𝑤𝑧𝑚𝐽 (𝑤𝑚 ∧ ((cls‘𝐽)‘𝑚) ⊆ 𝑧)))
642, 62, 63sylanbrc 586 1 ((𝐽 ∈ (TopOn‘𝑋) ∧ (KQ‘𝐽) ∈ Reg) → 𝐽 ∈ Reg)
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 399   = wceq 1538  wcel 2115  wral 3133  wrex 3134  {crab 3137  wss 3919   cuni 4824  cmpt 5132  ccnv 5541  ran crn 5543  cima 5545   Fn wfn 6338  cfv 6343  (class class class)co 7149  Topctop 21501  TopOnctopon 21518  Clsdccld 21624  clsccl 21626   Cn ccn 21832  Regcreg 21917  KQckq 22301
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 1971  ax-7 2016  ax-8 2117  ax-9 2125  ax-10 2146  ax-11 2162  ax-12 2179  ax-ext 2796  ax-rep 5176  ax-sep 5189  ax-nul 5196  ax-pow 5253  ax-pr 5317  ax-un 7455
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 2071  df-mo 2624  df-eu 2655  df-clab 2803  df-cleq 2817  df-clel 2896  df-nfc 2964  df-ne 3015  df-ral 3138  df-rex 3139  df-reu 3140  df-rab 3142  df-v 3482  df-sbc 3759  df-csb 3867  df-dif 3922  df-un 3924  df-in 3926  df-ss 3936  df-nul 4277  df-if 4451  df-pw 4524  df-sn 4551  df-pr 4553  df-op 4557  df-uni 4825  df-int 4863  df-iun 4907  df-iin 4908  df-br 5053  df-opab 5115  df-mpt 5133  df-id 5447  df-xp 5548  df-rel 5549  df-cnv 5550  df-co 5551  df-dm 5552  df-rn 5553  df-res 5554  df-ima 5555  df-iota 6302  df-fun 6345  df-fn 6346  df-f 6347  df-f1 6348  df-fo 6349  df-f1o 6350  df-fv 6351  df-ov 7152  df-oprab 7153  df-mpo 7154  df-map 8404  df-qtop 16780  df-top 21502  df-topon 21519  df-cld 21627  df-cls 21629  df-cn 21835  df-reg 21924  df-kq 22302
This theorem is referenced by:  kqreg  22359
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