Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > ILE Home > Th. List > cncfmpt2fcntop | GIF version |
Description: Composition of continuous functions. –cn→ analogue of cnmpt12f 12455. (Contributed by Mario Carneiro, 3-Sep-2014.) |
Ref | Expression |
---|---|
cncfmpt2fcntop.1 | ⊢ 𝐽 = (MetOpen‘(abs ∘ − )) |
cncfmpt2f.2 | ⊢ (𝜑 → 𝐹 ∈ ((𝐽 ×t 𝐽) Cn 𝐽)) |
cncfmpt2f.3 | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ)) |
cncfmpt2f.4 | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ)) |
Ref | Expression |
---|---|
cncfmpt2fcntop | ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴𝐹𝐵)) ∈ (𝑋–cn→ℂ)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cncfmpt2fcntop.1 | . . . . 5 ⊢ 𝐽 = (MetOpen‘(abs ∘ − )) | |
2 | 1 | cntoptopon 12701 | . . . 4 ⊢ 𝐽 ∈ (TopOn‘ℂ) |
3 | cncfmpt2f.3 | . . . . 5 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ)) | |
4 | cncfrss 12731 | . . . . 5 ⊢ ((𝑥 ∈ 𝑋 ↦ 𝐴) ∈ (𝑋–cn→ℂ) → 𝑋 ⊆ ℂ) | |
5 | 3, 4 | syl 14 | . . . 4 ⊢ (𝜑 → 𝑋 ⊆ ℂ) |
6 | resttopon 12340 | . . . 4 ⊢ ((𝐽 ∈ (TopOn‘ℂ) ∧ 𝑋 ⊆ ℂ) → (𝐽 ↾t 𝑋) ∈ (TopOn‘𝑋)) | |
7 | 2, 5, 6 | sylancr 410 | . . 3 ⊢ (𝜑 → (𝐽 ↾t 𝑋) ∈ (TopOn‘𝑋)) |
8 | ssid 3117 | . . . . 5 ⊢ ℂ ⊆ ℂ | |
9 | eqid 2139 | . . . . . 6 ⊢ (𝐽 ↾t 𝑋) = (𝐽 ↾t 𝑋) | |
10 | 2 | toponrestid 12188 | . . . . . 6 ⊢ 𝐽 = (𝐽 ↾t ℂ) |
11 | 1, 9, 10 | cncfcncntop 12749 | . . . . 5 ⊢ ((𝑋 ⊆ ℂ ∧ ℂ ⊆ ℂ) → (𝑋–cn→ℂ) = ((𝐽 ↾t 𝑋) Cn 𝐽)) |
12 | 5, 8, 11 | sylancl 409 | . . . 4 ⊢ (𝜑 → (𝑋–cn→ℂ) = ((𝐽 ↾t 𝑋) Cn 𝐽)) |
13 | 3, 12 | eleqtrd 2218 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐴) ∈ ((𝐽 ↾t 𝑋) Cn 𝐽)) |
14 | cncfmpt2f.4 | . . . 4 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ (𝑋–cn→ℂ)) | |
15 | 14, 12 | eleqtrd 2218 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ 𝐵) ∈ ((𝐽 ↾t 𝑋) Cn 𝐽)) |
16 | cncfmpt2f.2 | . . 3 ⊢ (𝜑 → 𝐹 ∈ ((𝐽 ×t 𝐽) Cn 𝐽)) | |
17 | 7, 13, 15, 16 | cnmpt12f 12455 | . 2 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴𝐹𝐵)) ∈ ((𝐽 ↾t 𝑋) Cn 𝐽)) |
18 | 17, 12 | eleqtrrd 2219 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝑋 ↦ (𝐴𝐹𝐵)) ∈ (𝑋–cn→ℂ)) |
Colors of variables: wff set class |
Syntax hints: → wi 4 = wceq 1331 ∈ wcel 1480 ⊆ wss 3071 ↦ cmpt 3989 ∘ ccom 4543 ‘cfv 5123 (class class class)co 5774 ℂcc 7618 − cmin 7933 abscabs 10769 ↾t crest 12120 MetOpencmopn 12154 TopOnctopon 12177 Cn ccn 12354 ×t ctx 12421 –cn→ccncf 12726 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-in1 603 ax-in2 604 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-13 1491 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-coll 4043 ax-sep 4046 ax-nul 4054 ax-pow 4098 ax-pr 4131 ax-un 4355 ax-setind 4452 ax-iinf 4502 ax-cnex 7711 ax-resscn 7712 ax-1cn 7713 ax-1re 7714 ax-icn 7715 ax-addcl 7716 ax-addrcl 7717 ax-mulcl 7718 ax-mulrcl 7719 ax-addcom 7720 ax-mulcom 7721 ax-addass 7722 ax-mulass 7723 ax-distr 7724 ax-i2m1 7725 ax-0lt1 7726 ax-1rid 7727 ax-0id 7728 ax-rnegex 7729 ax-precex 7730 ax-cnre 7731 ax-pre-ltirr 7732 ax-pre-ltwlin 7733 ax-pre-lttrn 7734 ax-pre-apti 7735 ax-pre-ltadd 7736 ax-pre-mulgt0 7737 ax-pre-mulext 7738 ax-arch 7739 ax-caucvg 7740 |
This theorem depends on definitions: df-bi 116 df-stab 816 df-dc 820 df-3or 963 df-3an 964 df-tru 1334 df-fal 1337 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ne 2309 df-nel 2404 df-ral 2421 df-rex 2422 df-reu 2423 df-rmo 2424 df-rab 2425 df-v 2688 df-sbc 2910 df-csb 3004 df-dif 3073 df-un 3075 df-in 3077 df-ss 3084 df-nul 3364 df-if 3475 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-uni 3737 df-int 3772 df-iun 3815 df-br 3930 df-opab 3990 df-mpt 3991 df-tr 4027 df-id 4215 df-po 4218 df-iso 4219 df-iord 4288 df-on 4290 df-ilim 4291 df-suc 4293 df-iom 4505 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-res 4551 df-ima 4552 df-iota 5088 df-fun 5125 df-fn 5126 df-f 5127 df-f1 5128 df-fo 5129 df-f1o 5130 df-fv 5131 df-isom 5132 df-riota 5730 df-ov 5777 df-oprab 5778 df-mpo 5779 df-1st 6038 df-2nd 6039 df-recs 6202 df-frec 6288 df-map 6544 df-sup 6871 df-inf 6872 df-pnf 7802 df-mnf 7803 df-xr 7804 df-ltxr 7805 df-le 7806 df-sub 7935 df-neg 7936 df-reap 8337 df-ap 8344 df-div 8433 df-inn 8721 df-2 8779 df-3 8780 df-4 8781 df-n0 8978 df-z 9055 df-uz 9327 df-q 9412 df-rp 9442 df-xneg 9559 df-xadd 9560 df-seqfrec 10219 df-exp 10293 df-cj 10614 df-re 10615 df-im 10616 df-rsqrt 10770 df-abs 10771 df-rest 12122 df-topgen 12141 df-psmet 12156 df-xmet 12157 df-met 12158 df-bl 12159 df-mopn 12160 df-top 12165 df-topon 12178 df-bases 12210 df-cn 12357 df-cnp 12358 df-tx 12422 df-cncf 12727 |
This theorem is referenced by: dvcnp2cntop 12832 sincn 12858 coscn 12859 |
Copyright terms: Public domain | W3C validator |