| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > fnconstg | Structured version Visualization version GIF version | ||
| Description: A Cartesian product with a singleton is a constant function. (Contributed by NM, 24-Jul-2014.) |
| Ref | Expression |
|---|---|
| fnconstg | ⊢ (𝐵 ∈ 𝑉 → (𝐴 × {𝐵}) Fn 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fconstg 6747 | . 2 ⊢ (𝐵 ∈ 𝑉 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | 1 | ffnd 6688 | 1 ⊢ (𝐵 ∈ 𝑉 → (𝐴 × {𝐵}) Fn 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2141 {csn 4581 × cxp 5643 Fn wfn 6512 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-sep 5245 ax-pr 5389 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-rab 3414 df-v 3455 df-dif 3907 df-un 3909 df-in 3911 df-ss 3921 df-nul 4286 df-if 4480 df-sn 4582 df-pr 4584 df-op 4588 df-br 5100 df-opab 5162 df-mpt 5181 df-id 5540 df-xp 5651 df-rel 5652 df-cnv 5653 df-co 5654 df-dm 5655 df-rn 5656 df-fun 6519 df-fn 6520 df-f 6521 |
| This theorem is referenced by: fconst2g 7183 ofc1 7684 ofc2 7685 caofid0l 7689 caofid0r 7690 caofid1 7691 caofid2 7692 fnsuppres 8166 fczsupp0 8168 fczfsuppd 9329 brwdom2 9518 cantnf0 9627 ofnegsub 12190 ofsubge0 12191 pwsplusgval 17503 pwsmulrval 17504 pwsvscafval 17507 pwsco1mhm 18849 dprdsubg 20049 pwsmgp 20354 pwssplit1 21106 frlmpwsfi 21784 frlmbas 21787 frlmvscaval 21800 islindf4 21870 psrascl 22010 tmdgsum2 24136 0plef 25714 0pledm 25715 itg1ge0 25728 mbfi1fseqlem5 25761 xrge0f 25773 itg2ge0 25777 itg2addlem 25800 bddibl 25882 dvidlem 25957 rolle 26032 dveq0 26042 dv11cn 26043 tdeglem4 26100 mdeg0 26110 fta1blem 26211 qaa 26364 basellem9 27130 noextendseq 27708 noetainflem4 27781 constcof 32773 fdifsuppconst 32841 elrspunidl 33575 ofcc 34364 ofcof 34365 eulerpartlemt 34629 matunitlindflem1 38079 matunitlindflem2 38080 ptrecube 38083 poimirlem1 38084 poimirlem2 38085 poimirlem3 38086 poimirlem4 38087 poimirlem5 38088 poimirlem6 38089 poimirlem7 38090 poimirlem10 38093 poimirlem11 38094 poimirlem12 38095 poimirlem16 38099 poimirlem17 38100 poimirlem19 38102 poimirlem20 38103 poimirlem22 38105 poimirlem23 38106 poimirlem28 38111 poimirlem29 38112 poimirlem31 38114 poimirlem32 38115 broucube 38117 cnpwstotbnd 38260 eqlkr2 39688 fsuppssind 43139 pwssplit4 43630 mpaaeu 43691 rngunsnply 43710 ofoaid1 43899 ofoaid2 43900 naddcnffo 43905 ofdivrec 44866 dvconstbi 44874 zlmodzxzscm 48943 nelsubclem 49652 aacllem 50386 |
| Copyright terms: Public domain | W3C validator |