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Theorem cnmptkc 22530
Description: The curried first projection 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))
Assertion
Ref Expression
cnmptkc (𝜑 → (𝑥𝑋 ↦ (𝑦𝑌𝑥)) ∈ (𝐽 Cn (𝐽ko 𝐾)))
Distinct variable groups:   𝑥,𝑦,𝐽   𝑥,𝐾,𝑦   𝜑,𝑥,𝑦   𝑥,𝑋,𝑦   𝑥,𝑌,𝑦

Proof of Theorem cnmptkc
StepHypRef Expression
1 fconstmpt 5596 . . 3 (𝑌 × {𝑥}) = (𝑦𝑌𝑥)
21mpteq2i 5132 . 2 (𝑥𝑋 ↦ (𝑌 × {𝑥})) = (𝑥𝑋 ↦ (𝑦𝑌𝑥))
3 cnmptk1.k . . 3 (𝜑𝐾 ∈ (TopOn‘𝑌))
4 cnmptk1.j . . 3 (𝜑𝐽 ∈ (TopOn‘𝑋))
5 xkoccn 22470 . . 3 ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐽 ∈ (TopOn‘𝑋)) → (𝑥𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽ko 𝐾)))
63, 4, 5syl2anc 587 . 2 (𝜑 → (𝑥𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽ko 𝐾)))
72, 6eqeltrrid 2836 1 (𝜑 → (𝑥𝑋 ↦ (𝑦𝑌𝑥)) ∈ (𝐽 Cn (𝐽ko 𝐾)))
Colors of variables: wff setvar class
Syntax hints:  wi 4  wcel 2112  {csn 4527  cmpt 5120   × cxp 5534  cfv 6358  (class class class)co 7191  TopOnctopon 21761   Cn ccn 22075  ko cxko 22412
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1803  ax-4 1817  ax-5 1918  ax-6 1976  ax-7 2018  ax-8 2114  ax-9 2122  ax-10 2143  ax-11 2160  ax-12 2177  ax-ext 2708  ax-rep 5164  ax-sep 5177  ax-nul 5184  ax-pow 5243  ax-pr 5307  ax-un 7501
This theorem depends on definitions:  df-bi 210  df-an 400  df-or 848  df-3or 1090  df-3an 1091  df-tru 1546  df-fal 1556  df-ex 1788  df-nf 1792  df-sb 2073  df-mo 2539  df-eu 2568  df-clab 2715  df-cleq 2728  df-clel 2809  df-nfc 2879  df-ne 2933  df-ral 3056  df-rex 3057  df-reu 3058  df-rab 3060  df-v 3400  df-sbc 3684  df-csb 3799  df-dif 3856  df-un 3858  df-in 3860  df-ss 3870  df-pss 3872  df-nul 4224  df-if 4426  df-pw 4501  df-sn 4528  df-pr 4530  df-tp 4532  df-op 4534  df-uni 4806  df-int 4846  df-iun 4892  df-iin 4893  df-br 5040  df-opab 5102  df-mpt 5121  df-tr 5147  df-id 5440  df-eprel 5445  df-po 5453  df-so 5454  df-fr 5494  df-we 5496  df-xp 5542  df-rel 5543  df-cnv 5544  df-co 5545  df-dm 5546  df-rn 5547  df-res 5548  df-ima 5549  df-ord 6194  df-on 6195  df-lim 6196  df-suc 6197  df-iota 6316  df-fun 6360  df-fn 6361  df-f 6362  df-f1 6363  df-fo 6364  df-f1o 6365  df-fv 6366  df-ov 7194  df-oprab 7195  df-mpo 7196  df-om 7623  df-1st 7739  df-2nd 7740  df-1o 8180  df-er 8369  df-map 8488  df-en 8605  df-dom 8606  df-fin 8608  df-fi 9005  df-rest 16881  df-topgen 16902  df-top 21745  df-topon 21762  df-bases 21797  df-cn 22078  df-cnp 22079  df-cmp 22238  df-xko 22414
This theorem is referenced by: (None)
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