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| Mirrors > Home > ILE Home > Th. List > fvconst2g | GIF version | ||
| Description: The value of a constant function. (Contributed by NM, 20-Aug-2005.) |
| Ref | Expression |
|---|---|
| fvconst2g | ⊢ ((𝐵 ∈ 𝐷 ∧ 𝐶 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝐶) = 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fconstg 5592 | . 2 ⊢ (𝐵 ∈ 𝐷 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | fvconst 5906 | . 2 ⊢ (((𝐴 × {𝐵}):𝐴⟶{𝐵} ∧ 𝐶 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝐶) = 𝐵) | |
| 3 | 1, 2 | sylan 283 | 1 ⊢ ((𝐵 ∈ 𝐷 ∧ 𝐶 ∈ 𝐴) → ((𝐴 × {𝐵})‘𝐶) = 𝐵) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 104 = wceq 1402 ∈ wcel 2209 {csn 3709 × cxp 4774 ⟶wf 5376 ‘cfv 5380 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 721 ax-5 1500 ax-7 1501 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-10 1558 ax-11 1559 ax-i12 1560 ax-bndl 1562 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-i5r 1588 ax-14 2212 ax-ext 2220 ax-sep 4251 ax-pow 4313 ax-pr 4348 |
| This proof depends on definitions: df-bi 117 df-3an 1011 df-tru 1405 df-nf 1514 df-sb 1816 df-eu 2089 df-mo 2090 df-clab 2225 df-cleq 2231 df-clel 2234 df-nfc 2381 df-ral 2533 df-rex 2534 df-v 2823 df-sbc 3052 df-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-uni 3936 df-br 4132 df-opab 4194 df-mpt 4195 df-id 4440 df-xp 4782 df-rel 4783 df-cnv 4784 df-co 4785 df-dm 4786 df-rn 4787 df-iota 5340 df-fun 5382 df-fn 5383 df-f 5384 df-fv 5388 |
| This theorem is used by: fconst2g 5933 fvconst2 5934 ofc1g 6328 ofc2g 6329 caofid0l 6333 caofid0r 6334 caofid1 6335 caofid2 6336 fczsupp0 6503 ser0 10992 exp3vallem 10999 exp3val 11000 exp1 11004 expp1 11005 resqrexlem1arp 11794 resqrexlemf1 11797 climconst2 12083 climaddc1 12121 climmulc2 12123 climsubc1 12124 climsubc2 12125 climlec2 12133 prodf1 12335 prod0 12378 ialgrlemconst 12847 ialgr0 12848 algrf 12849 algrp1 12850 0mhm 13853 mulgval 13985 mulgfng 13987 mulgnngzsum 13990 mulg1 13992 mulgnnp1 13993 mulgnnsubcl 13997 mulgnn0z 14012 mulgnndir 14014 gsumconstcmn 14267 pwsbas 14313 pwsplusgval 14316 pwsmulrval 14317 pwsinvg 14323 psrlidmfi 15204 mplsubgfilemm 15226 lmconst 15454 cnconst2 15471 dvidlemap 15929 dvidrelem 15930 dvidsslem 15931 dvconst 15932 dvconstre 15934 dvconstss 15936 dvef 15965 |
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