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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 5724 | . . 3 ⊢ (𝑌 × {𝑥}) = (𝑦 ∈ 𝑌 ↦ 𝑥) | |
| 2 | 1 | mpteq2i 5211 | . 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 23745 | . . 3 ⊢ ((𝐾 ∈ (TopOn‘𝑌) ∧ 𝐽 ∈ (TopOn‘𝑋)) → (𝑥 ∈ 𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) | |
| 6 | 3, 4, 5 | syl2anc 595 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝑌 × {𝑥})) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) |
| 7 | 2, 6 | eqeltrrid 2874 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝑦 ∈ 𝑌 ↦ 𝑥)) ∈ (𝐽 Cn (𝐽 ↑ko 𝐾))) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2149 {csn 4594 ↦ cmpt 5196 × cxp 5660 ‘cfv 6537 (class class class)co 7411 TopOnctopon 23036 Cn ccn 23350 ↑ko cxko 23687 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1822 ax-4 1836 ax-5 1937 ax-6 1994 ax-7 2035 ax-8 2151 ax-9 2159 ax-10 2182 ax-11 2198 ax-12 2219 ax-ext 2741 ax-rep 5242 ax-sep 5261 ax-nul 5271 ax-pow 5337 ax-pr 5405 ax-un 7733 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3or 1102 df-3an 1103 df-tru 1570 df-fal 1580 df-ex 1807 df-nf 1811 df-sb 2098 df-mo 2573 df-eu 2603 df-clab 2748 df-cleq 2761 df-clel 2844 df-nfc 2918 df-ne 2965 df-ral 3086 df-rex 3096 df-reu 3377 df-rab 3424 df-v 3465 df-sbc 3754 df-csb 3862 df-dif 3916 df-un 3918 df-in 3920 df-ss 3930 df-pss 3933 df-nul 4295 df-if 4493 df-pw 4569 df-sn 4595 df-pr 4597 df-op 4601 df-uni 4877 df-int 4917 df-iun 4962 df-iin 4963 df-br 5114 df-opab 5178 df-mpt 5197 df-tr 5223 df-id 5557 df-eprel 5562 df-po 5570 df-so 5571 df-fr 5615 df-we 5617 df-xp 5668 df-rel 5669 df-cnv 5670 df-co 5671 df-dm 5672 df-rn 5673 df-res 5674 df-ima 5675 df-ord 6364 df-on 6365 df-lim 6366 df-suc 6367 df-iota 6493 df-fun 6539 df-fn 6540 df-f 6541 df-f1 6542 df-fo 6543 df-f1o 6544 df-fv 6545 df-ov 7414 df-oprab 7415 df-mpo 7416 df-om 7863 df-1st 7986 df-2nd 7987 df-1o 8453 df-2o 8454 df-map 8826 df-en 8944 df-dom 8945 df-fin 8947 df-fi 9371 df-rest 17475 df-topgen 17496 df-top 23020 df-topon 23037 df-bases 23072 df-cn 23353 df-cnp 23354 df-cmp 23513 df-xko 23689 |
| This theorem is referenced by: (None) |
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