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| Mirrors > Home > MPE Home > Th. List > Mathboxes > constcncfg | Structured version Visualization version GIF version | ||
| Description: A constant function is a continuous function on ℂ. (Contributed by Glauco Siliprandi, 11-Dec-2019.) |
| Ref | Expression |
|---|---|
| constcncfg.a | ⊢ (𝜑 → 𝐴 ⊆ ℂ) |
| constcncfg.b | ⊢ (𝜑 → 𝐵 ∈ 𝐶) |
| constcncfg.c | ⊢ (𝜑 → 𝐶 ⊆ ℂ) |
| Ref | Expression |
|---|---|
| constcncfg | ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→𝐶)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | constcncfg.b | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝐶) | |
| 2 | constcncfg.a | . 2 ⊢ (𝜑 → 𝐴 ⊆ ℂ) | |
| 3 | constcncfg.c | . 2 ⊢ (𝜑 → 𝐶 ⊆ ℂ) | |
| 4 | cncfmptc 25239 | . 2 ⊢ ((𝐵 ∈ 𝐶 ∧ 𝐴 ⊆ ℂ ∧ 𝐶 ⊆ ℂ) → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→𝐶)) | |
| 5 | 1, 2, 3, 4 | syl3anc 1398 | 1 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↦ 𝐵) ∈ (𝐴–cn→𝐶)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 ⊆ wss 3895 ↦ cmpt 5185 (class class class)co 7421 ℂcc 11202 –cn→ccncf 25203 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 ax-sep 5248 ax-nul 5259 ax-pow 5326 ax-pr 5390 ax-un 7752 ax-cnex 11260 ax-resscn 11261 ax-1cn 11262 ax-icn 11263 ax-addcl 11264 ax-addrcl 11265 ax-mulcl 11266 ax-mulrcl 11267 ax-mulcom 11268 ax-addass 11269 ax-mulass 11270 ax-distr 11271 ax-i2m1 11272 ax-1ne0 11273 ax-1rid 11274 ax-rnegex 11275 ax-rrecex 11276 ax-cnre 11277 ax-pre-lttri 11278 ax-pre-lttrn 11279 ax-pre-ltadd 11280 ax-pre-mulgt0 11281 ax-pre-sup 11282 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3or 1104 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-nfc 2909 df-ne 2956 df-nel 3062 df-ral 3077 df-rex 3087 df-rmo 3365 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-pss 4014 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-pw 4558 df-sn 4585 df-pr 4587 df-tp 4589 df-op 4835 df-uni 4867 df-int 4907 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-tr 5212 df-id 5545 df-eprel 5550 df-po 5558 df-so 5559 df-fr 5603 df-we 5605 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 df-pred 6304 df-ord 6365 df-on 6366 df-lim 6367 df-suc 6368 df-iota 6494 df-fun 6541 df-fn 6542 df-f 6543 df-f1 6544 df-fo 6545 df-f1o 6546 df-fv 6547 df-riota 7378 df-ov 7424 df-oprab 7425 df-mpo 7426 df-om 7879 df-1st 8002 df-2nd 8003 df-frecs 8303 df-wrecs 8334 df-recs 8383 df-rdg 8422 df-1o 8480 df-er 8721 df-map 8853 df-en 8978 df-dom 8979 df-sdom 8980 df-fin 8981 df-fi 9407 df-sup 9438 df-inf 9439 df-pnf 11349 df-mnf 11350 df-xr 11351 df-ltxr 11352 df-le 11353 df-sub 11547 df-neg 11548 df-div 11978 df-nn 12340 df-2 12409 df-3 12410 df-4 12411 df-5 12412 df-6 12413 df-7 12414 df-8 12415 df-9 12416 df-n0 12611 df-z 12698 df-dec 12819 df-uz 12970 df-q 13080 df-rp 13125 df-xneg 13245 df-xadd 13246 df-xmul 13247 df-fz 13644 df-seq 14149 df-exp 14209 df-cj 15272 df-re 15273 df-im 15274 df-sqrt 15408 df-abs 15409 df-struct 17331 df-slot 17366 df-ndx 17378 df-base 17394 df-plusg 17447 df-mulr 17448 df-starv 17449 df-tset 17453 df-ple 17454 df-ds 17456 df-unif 17457 df-rest 17599 df-topn 17600 df-topgen 17620 df-psmet 21676 df-xmet 21677 df-met 21678 df-bl 21679 df-mopn 21680 df-cnfld 21685 df-top 23218 df-topon 23235 df-topsp 23257 df-bases 23270 df-cn 23551 df-cnp 23552 df-xms 24645 df-ms 24646 df-cncf 25205 |
| This theorem is used by: addccncf2 46980 negcncfg 46985 fprodcncf 47004 itgsinexplem1 47058 itgcoscmulx 47073 itgsincmulx 47078 itgiccshift 47084 itgperiod 47085 itgsbtaddcnst 47086 dirkeritg 47206 dirkercncflem2 47208 dirkercncflem4 47210 fourierdlem16 47227 fourierdlem18 47229 fourierdlem21 47232 fourierdlem22 47233 fourierdlem39 47250 fourierdlem40 47251 fourierdlem58 47268 fourierdlem59 47269 fourierdlem62 47272 fourierdlem68 47278 fourierdlem73 47283 fourierdlem76 47286 fourierdlem78 47288 fourierdlem83 47293 fourierdlem93 47303 fourierdlem111 47321 sqwvfoura 47332 sqwvfourb 47333 fouriersw 47335 etransclem18 47356 etransclem22 47360 etransclem34 47372 etransclem46 47384 |
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