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Theorem cmphaushmeo 22383
Description: A continuous bijection from a compact space to a Hausdorff space is a homeomorphism. (Contributed by Mario Carneiro, 17-Feb-2015.)
Hypotheses
Ref Expression
cmphaushmeo.1 𝑋 = 𝐽
cmphaushmeo.2 𝑌 = 𝐾
Assertion
Ref Expression
cmphaushmeo ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹 ∈ (𝐽Homeo𝐾) ↔ 𝐹:𝑋1-1-onto𝑌))

Proof of Theorem cmphaushmeo
Dummy variable 𝑥 is distinct from all other variables.
StepHypRef Expression
1 cmphaushmeo.1 . . 3 𝑋 = 𝐽
2 cmphaushmeo.2 . . 3 𝑌 = 𝐾
31, 2hmeof1o 22347 . 2 (𝐹 ∈ (𝐽Homeo𝐾) → 𝐹:𝑋1-1-onto𝑌)
4 f1ocnv 6600 . . . . . . . 8 (𝐹:𝑋1-1-onto𝑌𝐹:𝑌1-1-onto𝑋)
5 f1of 6588 . . . . . . . 8 (𝐹:𝑌1-1-onto𝑋𝐹:𝑌𝑋)
64, 5syl 17 . . . . . . 7 (𝐹:𝑋1-1-onto𝑌𝐹:𝑌𝑋)
76a1i 11 . . . . . 6 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌𝐹:𝑌𝑋))
8 f1orel 6591 . . . . . . . . . . . 12 (𝐹:𝑋1-1-onto𝑌 → Rel 𝐹)
98ad2antll 728 . . . . . . . . . . 11 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → Rel 𝐹)
10 dfrel2 6019 . . . . . . . . . . 11 (Rel 𝐹𝐹 = 𝐹)
119, 10sylib 221 . . . . . . . . . 10 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝐹 = 𝐹)
1211imaeq1d 5901 . . . . . . . . 9 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐹𝑥) = (𝐹𝑥))
13 simp2 1134 . . . . . . . . . . 11 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐾 ∈ Haus)
1413adantr 484 . . . . . . . . . 10 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝐾 ∈ Haus)
15 imassrn 5913 . . . . . . . . . . 11 (𝐹𝑥) ⊆ ran 𝐹
16 f1ofo 6595 . . . . . . . . . . . . 13 (𝐹:𝑋1-1-onto𝑌𝐹:𝑋onto𝑌)
1716ad2antll 728 . . . . . . . . . . . 12 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝐹:𝑋onto𝑌)
18 forn 6566 . . . . . . . . . . . 12 (𝐹:𝑋onto𝑌 → ran 𝐹 = 𝑌)
1917, 18syl 17 . . . . . . . . . . 11 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → ran 𝐹 = 𝑌)
2015, 19sseqtrid 3995 . . . . . . . . . 10 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐹𝑥) ⊆ 𝑌)
21 simpl3 1190 . . . . . . . . . . 11 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝐹 ∈ (𝐽 Cn 𝐾))
22 simp1 1133 . . . . . . . . . . . . 13 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐽 ∈ Comp)
2322adantr 484 . . . . . . . . . . . 12 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝐽 ∈ Comp)
24 simprl 770 . . . . . . . . . . . 12 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → 𝑥 ∈ (Clsd‘𝐽))
25 cmpcld 21985 . . . . . . . . . . . 12 ((𝐽 ∈ Comp ∧ 𝑥 ∈ (Clsd‘𝐽)) → (𝐽t 𝑥) ∈ Comp)
2623, 24, 25syl2anc 587 . . . . . . . . . . 11 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐽t 𝑥) ∈ Comp)
27 imacmp 21980 . . . . . . . . . . 11 ((𝐹 ∈ (𝐽 Cn 𝐾) ∧ (𝐽t 𝑥) ∈ Comp) → (𝐾t (𝐹𝑥)) ∈ Comp)
2821, 26, 27syl2anc 587 . . . . . . . . . 10 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐾t (𝐹𝑥)) ∈ Comp)
292hauscmp 21990 . . . . . . . . . 10 ((𝐾 ∈ Haus ∧ (𝐹𝑥) ⊆ 𝑌 ∧ (𝐾t (𝐹𝑥)) ∈ Comp) → (𝐹𝑥) ∈ (Clsd‘𝐾))
3014, 20, 28, 29syl3anc 1368 . . . . . . . . 9 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐹𝑥) ∈ (Clsd‘𝐾))
3112, 30eqeltrd 2912 . . . . . . . 8 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ (𝑥 ∈ (Clsd‘𝐽) ∧ 𝐹:𝑋1-1-onto𝑌)) → (𝐹𝑥) ∈ (Clsd‘𝐾))
3231expr 460 . . . . . . 7 (((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) ∧ 𝑥 ∈ (Clsd‘𝐽)) → (𝐹:𝑋1-1-onto𝑌 → (𝐹𝑥) ∈ (Clsd‘𝐾)))
3332ralrimdva 3177 . . . . . 6 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌 → ∀𝑥 ∈ (Clsd‘𝐽)(𝐹𝑥) ∈ (Clsd‘𝐾)))
347, 33jcad 516 . . . . 5 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌 → (𝐹:𝑌𝑋 ∧ ∀𝑥 ∈ (Clsd‘𝐽)(𝐹𝑥) ∈ (Clsd‘𝐾))))
35 haustop 21914 . . . . . . . 8 (𝐾 ∈ Haus → 𝐾 ∈ Top)
3613, 35syl 17 . . . . . . 7 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐾 ∈ Top)
372toptopon 21500 . . . . . . 7 (𝐾 ∈ Top ↔ 𝐾 ∈ (TopOn‘𝑌))
3836, 37sylib 221 . . . . . 6 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐾 ∈ (TopOn‘𝑌))
39 cmptop 21978 . . . . . . . 8 (𝐽 ∈ Comp → 𝐽 ∈ Top)
4022, 39syl 17 . . . . . . 7 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐽 ∈ Top)
411toptopon 21500 . . . . . . 7 (𝐽 ∈ Top ↔ 𝐽 ∈ (TopOn‘𝑋))
4240, 41sylib 221 . . . . . 6 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐽 ∈ (TopOn‘𝑋))
43 iscncl 21852 . . . . . 6 ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐽 ∈ (TopOn‘𝑋)) → (𝐹 ∈ (𝐾 Cn 𝐽) ↔ (𝐹:𝑌𝑋 ∧ ∀𝑥 ∈ (Clsd‘𝐽)(𝐹𝑥) ∈ (Clsd‘𝐾))))
4438, 42, 43syl2anc 587 . . . . 5 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹 ∈ (𝐾 Cn 𝐽) ↔ (𝐹:𝑌𝑋 ∧ ∀𝑥 ∈ (Clsd‘𝐽)(𝐹𝑥) ∈ (Clsd‘𝐾))))
4534, 44sylibrd 262 . . . 4 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌𝐹 ∈ (𝐾 Cn 𝐽)))
46 simp3 1135 . . . 4 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → 𝐹 ∈ (𝐽 Cn 𝐾))
4745, 46jctild 529 . . 3 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌 → (𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝐹 ∈ (𝐾 Cn 𝐽))))
48 ishmeo 22342 . . 3 (𝐹 ∈ (𝐽Homeo𝐾) ↔ (𝐹 ∈ (𝐽 Cn 𝐾) ∧ 𝐹 ∈ (𝐾 Cn 𝐽)))
4947, 48syl6ibr 255 . 2 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹:𝑋1-1-onto𝑌𝐹 ∈ (𝐽Homeo𝐾)))
503, 49impbid2 229 1 ((𝐽 ∈ Comp ∧ 𝐾 ∈ Haus ∧ 𝐹 ∈ (𝐽 Cn 𝐾)) → (𝐹 ∈ (𝐽Homeo𝐾) ↔ 𝐹:𝑋1-1-onto𝑌))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wb 209  wa 399  w3a 1084   = wceq 1538  wcel 2115  wral 3126  wss 3910   cuni 4811  ccnv 5527  ran crn 5529  cima 5531  Rel wrel 5533  wf 6324  ontowfo 6326  1-1-ontowf1o 6327  cfv 6328  (class class class)co 7130  t crest 16672  Topctop 21476  TopOnctopon 21493  Clsdccld 21599   Cn ccn 21807  Hauscha 21891  Compccmp 21969  Homeochmeo 22336
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 2178  ax-ext 2793  ax-rep 5163  ax-sep 5176  ax-nul 5183  ax-pow 5239  ax-pr 5303  ax-un 7436
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 845  df-3or 1085  df-3an 1086  df-tru 1541  df-ex 1782  df-nf 1786  df-sb 2071  df-mo 2623  df-eu 2654  df-clab 2800  df-cleq 2814  df-clel 2892  df-nfc 2960  df-ne 3008  df-ral 3131  df-rex 3132  df-reu 3133  df-rab 3135  df-v 3473  df-sbc 3750  df-csb 3858  df-dif 3913  df-un 3915  df-in 3917  df-ss 3927  df-pss 3929  df-nul 4267  df-if 4441  df-pw 4514  df-sn 4541  df-pr 4543  df-tp 4545  df-op 4547  df-uni 4812  df-int 4850  df-iun 4894  df-iin 4895  df-br 5040  df-opab 5102  df-mpt 5120  df-tr 5146  df-id 5433  df-eprel 5438  df-po 5447  df-so 5448  df-fr 5487  df-we 5489  df-xp 5534  df-rel 5535  df-cnv 5536  df-co 5537  df-dm 5538  df-rn 5539  df-res 5540  df-ima 5541  df-pred 6121  df-ord 6167  df-on 6168  df-lim 6169  df-suc 6170  df-iota 6287  df-fun 6330  df-fn 6331  df-f 6332  df-f1 6333  df-fo 6334  df-f1o 6335  df-fv 6336  df-ov 7133  df-oprab 7134  df-mpo 7135  df-om 7556  df-1st 7664  df-2nd 7665  df-wrecs 7922  df-recs 7983  df-rdg 8021  df-1o 8077  df-oadd 8081  df-er 8264  df-map 8383  df-en 8485  df-dom 8486  df-fin 8488  df-fi 8851  df-rest 16674  df-topgen 16695  df-top 21477  df-topon 21494  df-bases 21529  df-cld 21602  df-cls 21604  df-cn 21810  df-haus 21898  df-cmp 21970  df-hmeo 22338
This theorem is referenced by:  cncfcnvcn  23508
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