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Theorem cnmpt1k 22284
Description: The composition of a one-arg function with a curried function is continuous. (Contributed by Mario Carneiro, 23-Mar-2015.) (Revised by Mario Carneiro, 22-Aug-2015.)
Hypotheses
Ref Expression
cnmptk1.j (𝜑𝐽 ∈ (TopOn‘𝑋))
cnmptk1.k (𝜑𝐾 ∈ (TopOn‘𝑌))
cnmptk1.l (𝜑𝐿 ∈ (TopOn‘𝑍))
cnmpt1k.m (𝜑𝑀 ∈ (TopOn‘𝑊))
cnmpt1k.a (𝜑 → (𝑥𝑋𝐴) ∈ (𝐽 Cn 𝐿))
cnmpt1k.b (𝜑 → (𝑦𝑌 ↦ (𝑧𝑍𝐵)) ∈ (𝐾 Cn (𝑀ko 𝐿)))
cnmpt1k.c (𝑧 = 𝐴𝐵 = 𝐶)
Assertion
Ref Expression
cnmpt1k (𝜑 → (𝑦𝑌 ↦ (𝑥𝑋𝐶)) ∈ (𝐾 Cn (𝑀ko 𝐽)))
Distinct variable groups:   𝑥,𝑦,𝐽   𝑥,𝐾,𝑦   𝑥,𝐿,𝑦   𝑥,𝑀,𝑦   𝑥,𝑧,𝑍,𝑦   𝑧,𝐴   𝑥,𝐵   𝜑,𝑥,𝑦   𝑥,𝑋,𝑦   𝑥,𝑌,𝑦   𝑧,𝐶   𝑦,𝐴
Allowed substitution hints:   𝜑(𝑧)   𝐴(𝑥)   𝐵(𝑦,𝑧)   𝐶(𝑥,𝑦)   𝐽(𝑧)   𝐾(𝑧)   𝐿(𝑧)   𝑀(𝑧)   𝑊(𝑥,𝑦,𝑧)   𝑋(𝑧)   𝑌(𝑧)

Proof of Theorem cnmpt1k
Dummy variable 𝑤 is distinct from all other variables.
StepHypRef Expression
1 cnmptk1.j . . . . . . 7 (𝜑𝐽 ∈ (TopOn‘𝑋))
2 cnmptk1.l . . . . . . 7 (𝜑𝐿 ∈ (TopOn‘𝑍))
3 cnmpt1k.a . . . . . . 7 (𝜑 → (𝑥𝑋𝐴) ∈ (𝐽 Cn 𝐿))
4 cnf2 21851 . . . . . . 7 ((𝐽 ∈ (TopOn‘𝑋) ∧ 𝐿 ∈ (TopOn‘𝑍) ∧ (𝑥𝑋𝐴) ∈ (𝐽 Cn 𝐿)) → (𝑥𝑋𝐴):𝑋𝑍)
51, 2, 3, 4syl3anc 1367 . . . . . 6 (𝜑 → (𝑥𝑋𝐴):𝑋𝑍)
6 eqid 2821 . . . . . . 7 (𝑥𝑋𝐴) = (𝑥𝑋𝐴)
76fmpt 6869 . . . . . 6 (∀𝑥𝑋 𝐴𝑍 ↔ (𝑥𝑋𝐴):𝑋𝑍)
85, 7sylibr 236 . . . . 5 (𝜑 → ∀𝑥𝑋 𝐴𝑍)
98adantr 483 . . . 4 ((𝜑𝑦𝑌) → ∀𝑥𝑋 𝐴𝑍)
10 eqidd 2822 . . . 4 ((𝜑𝑦𝑌) → (𝑥𝑋𝐴) = (𝑥𝑋𝐴))
11 eqidd 2822 . . . 4 ((𝜑𝑦𝑌) → (𝑧𝑍𝐵) = (𝑧𝑍𝐵))
12 cnmpt1k.c . . . 4 (𝑧 = 𝐴𝐵 = 𝐶)
139, 10, 11, 12fmptcof 6887 . . 3 ((𝜑𝑦𝑌) → ((𝑧𝑍𝐵) ∘ (𝑥𝑋𝐴)) = (𝑥𝑋𝐶))
1413mpteq2dva 5154 . 2 (𝜑 → (𝑦𝑌 ↦ ((𝑧𝑍𝐵) ∘ (𝑥𝑋𝐴))) = (𝑦𝑌 ↦ (𝑥𝑋𝐶)))
15 cnmptk1.k . . 3 (𝜑𝐾 ∈ (TopOn‘𝑌))
16 cnmpt1k.b . . 3 (𝜑 → (𝑦𝑌 ↦ (𝑧𝑍𝐵)) ∈ (𝐾 Cn (𝑀ko 𝐿)))
17 topontop 21515 . . . . 5 (𝐿 ∈ (TopOn‘𝑍) → 𝐿 ∈ Top)
182, 17syl 17 . . . 4 (𝜑𝐿 ∈ Top)
19 cnmpt1k.m . . . . 5 (𝜑𝑀 ∈ (TopOn‘𝑊))
20 topontop 21515 . . . . 5 (𝑀 ∈ (TopOn‘𝑊) → 𝑀 ∈ Top)
2119, 20syl 17 . . . 4 (𝜑𝑀 ∈ Top)
22 eqid 2821 . . . . 5 (𝑀ko 𝐿) = (𝑀ko 𝐿)
2322xkotopon 22202 . . . 4 ((𝐿 ∈ Top ∧ 𝑀 ∈ Top) → (𝑀ko 𝐿) ∈ (TopOn‘(𝐿 Cn 𝑀)))
2418, 21, 23syl2anc 586 . . 3 (𝜑 → (𝑀ko 𝐿) ∈ (TopOn‘(𝐿 Cn 𝑀)))
2521, 3xkoco1cn 22259 . . 3 (𝜑 → (𝑤 ∈ (𝐿 Cn 𝑀) ↦ (𝑤 ∘ (𝑥𝑋𝐴))) ∈ ((𝑀ko 𝐿) Cn (𝑀ko 𝐽)))
26 coeq1 5723 . . 3 (𝑤 = (𝑧𝑍𝐵) → (𝑤 ∘ (𝑥𝑋𝐴)) = ((𝑧𝑍𝐵) ∘ (𝑥𝑋𝐴)))
2715, 16, 24, 25, 26cnmpt11 22265 . 2 (𝜑 → (𝑦𝑌 ↦ ((𝑧𝑍𝐵) ∘ (𝑥𝑋𝐴))) ∈ (𝐾 Cn (𝑀ko 𝐽)))
2814, 27eqeltrrd 2914 1 (𝜑 → (𝑦𝑌 ↦ (𝑥𝑋𝐶)) ∈ (𝐾 Cn (𝑀ko 𝐽)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wa 398   = wceq 1533  wcel 2110  wral 3138  cmpt 5139  ccom 5554  wf 6346  cfv 6350  (class class class)co 7150  Topctop 21495  TopOnctopon 21512   Cn ccn 21826  ko cxko 22163
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1792  ax-4 1806  ax-5 1907  ax-6 1966  ax-7 2011  ax-8 2112  ax-9 2120  ax-10 2141  ax-11 2156  ax-12 2172  ax-ext 2793  ax-rep 5183  ax-sep 5196  ax-nul 5203  ax-pow 5259  ax-pr 5322  ax-un 7455
This theorem depends on definitions:  df-bi 209  df-an 399  df-or 844  df-3or 1084  df-3an 1085  df-tru 1536  df-ex 1777  df-nf 1781  df-sb 2066  df-mo 2618  df-eu 2650  df-clab 2800  df-cleq 2814  df-clel 2893  df-nfc 2963  df-ne 3017  df-ral 3143  df-rex 3144  df-reu 3145  df-rab 3147  df-v 3497  df-sbc 3773  df-csb 3884  df-dif 3939  df-un 3941  df-in 3943  df-ss 3952  df-pss 3954  df-nul 4292  df-if 4468  df-pw 4541  df-sn 4562  df-pr 4564  df-tp 4566  df-op 4568  df-uni 4833  df-int 4870  df-iun 4914  df-iin 4915  df-br 5060  df-opab 5122  df-mpt 5140  df-tr 5166  df-id 5455  df-eprel 5460  df-po 5469  df-so 5470  df-fr 5509  df-we 5511  df-xp 5556  df-rel 5557  df-cnv 5558  df-co 5559  df-dm 5560  df-rn 5561  df-res 5562  df-ima 5563  df-pred 6143  df-ord 6189  df-on 6190  df-lim 6191  df-suc 6192  df-iota 6309  df-fun 6352  df-fn 6353  df-f 6354  df-f1 6355  df-fo 6356  df-f1o 6357  df-fv 6358  df-ov 7153  df-oprab 7154  df-mpo 7155  df-om 7575  df-1st 7683  df-2nd 7684  df-wrecs 7941  df-recs 8002  df-rdg 8040  df-1o 8096  df-oadd 8100  df-er 8283  df-map 8402  df-en 8504  df-dom 8505  df-fin 8507  df-fi 8869  df-rest 16690  df-topgen 16711  df-top 21496  df-topon 21513  df-bases 21548  df-cn 21829  df-cmp 21989  df-xko 22165
This theorem is referenced by: (None)
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