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Mirrors > Home > MPE Home > Th. List > cnmptkc | Structured version Visualization version GIF version |
Description: The curried first projection function is continuous. (Contributed by Mario Carneiro, 23-Mar-2015.) (Revised by Mario Carneiro, 22-Aug-2015.) |
Ref | Expression |
---|---|
cnmptk1.j | ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) |
cnmptk1.k | ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌)) |
Ref | Expression |
---|---|
cnmptkc | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝑦 ∈ 𝑌 ↦ 𝑥)) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fconstmpt 5595 | . . 3 ⊢ (𝑌 × {𝑥}) = (𝑦 ∈ 𝑌 ↦ 𝑥) | |
2 | 1 | mpteq2i 5139 | . 2 ⊢ (𝑥 ∈ 𝑋 ↦ (𝑌 × {𝑥})) = (𝑥 ∈ 𝑋 ↦ (𝑦 ∈ 𝑌 ↦ 𝑥)) |
3 | cnmptk1.k | . . 3 ⊢ (𝜑 → 𝐾 ∈ (TopOn‘𝑌)) | |
4 | cnmptk1.j | . . 3 ⊢ (𝜑 → 𝐽 ∈ (TopOn‘𝑋)) | |
5 | xkoccn 22205 | . . 3 ⊢ ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐽 ∈ (TopOn‘𝑋)) → (𝑥 ∈ 𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) | |
6 | 3, 4, 5 | syl2anc 586 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) |
7 | 2, 6 | eqeltrrid 2916 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝑦 ∈ 𝑌 ↦ 𝑥)) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∈ wcel 2114 {csn 4548 ↦ cmpt 5127 × cxp 5534 ‘cfv 6336 (class class class)co 7137 TopOnctopon 21496 Cn ccn 21810 ↑ko cxko 22147 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2792 ax-rep 5171 ax-sep 5184 ax-nul 5191 ax-pow 5247 ax-pr 5311 ax-un 7442 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3or 1084 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2653 df-clab 2799 df-cleq 2813 df-clel 2891 df-nfc 2959 df-ne 3012 df-ral 3138 df-rex 3139 df-reu 3140 df-rab 3142 df-v 3483 df-sbc 3759 df-csb 3867 df-dif 3922 df-un 3924 df-in 3926 df-ss 3935 df-pss 3937 df-nul 4275 df-if 4449 df-pw 4522 df-sn 4549 df-pr 4551 df-tp 4553 df-op 4555 df-uni 4820 df-int 4858 df-iun 4902 df-iin 4903 df-br 5048 df-opab 5110 df-mpt 5128 df-tr 5154 df-id 5441 df-eprel 5446 df-po 5455 df-so 5456 df-fr 5495 df-we 5497 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-pred 6129 df-ord 6175 df-on 6176 df-lim 6177 df-suc 6178 df-iota 6295 df-fun 6338 df-fn 6339 df-f 6340 df-f1 6341 df-fo 6342 df-f1o 6343 df-fv 6344 df-ov 7140 df-oprab 7141 df-mpo 7142 df-om 7562 df-1st 7670 df-2nd 7671 df-wrecs 7928 df-recs 7989 df-rdg 8027 df-1o 8083 df-oadd 8087 df-er 8270 df-map 8389 df-en 8491 df-dom 8492 df-fin 8494 df-fi 8856 df-rest 16674 df-topgen 16695 df-top 21480 df-topon 21497 df-bases 21532 df-cn 21813 df-cnp 21814 df-cmp 21973 df-xko 22149 |
This theorem is referenced by: (None) |
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