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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 5533 | . 2 ⊢ (𝐵 ∈ 𝐷 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | fvconst 5842 | . 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 |
| Syntax hints: → wi 4 ∧ wa 104 = wceq 1397 ∈ wcel 2202 {csn 3669 × cxp 4723 ⟶wf 5322 ‘cfv 5326 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-io 716 ax-5 1495 ax-7 1496 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-10 1553 ax-11 1554 ax-i12 1555 ax-bndl 1557 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-i5r 1583 ax-14 2205 ax-ext 2213 ax-sep 4207 ax-pow 4264 ax-pr 4299 |
| This theorem depends on definitions: df-bi 117 df-3an 1006 df-tru 1400 df-nf 1509 df-sb 1811 df-eu 2082 df-mo 2083 df-clab 2218 df-cleq 2224 df-clel 2227 df-nfc 2363 df-ral 2515 df-rex 2516 df-v 2804 df-sbc 3032 df-un 3204 df-in 3206 df-ss 3213 df-pw 3654 df-sn 3675 df-pr 3676 df-op 3678 df-uni 3894 df-br 4089 df-opab 4151 df-mpt 4152 df-id 4390 df-xp 4731 df-rel 4732 df-cnv 4733 df-co 4734 df-dm 4735 df-rn 4736 df-iota 5286 df-fun 5328 df-fn 5329 df-f 5330 df-fv 5334 |
| This theorem is referenced by: fconst2g 5869 fvconst2 5870 ofc1g 6257 ofc2g 6258 caofid0l 6262 caofid0r 6263 caofid1 6264 caofid2 6265 ser0 10796 exp3vallem 10803 exp3val 10804 exp1 10808 expp1 10809 resqrexlem1arp 11567 resqrexlemf1 11570 climconst2 11853 climaddc1 11891 climmulc2 11893 climsubc1 11894 climsubc2 11895 climlec2 11903 prodf1 12105 prod0 12148 ialgrlemconst 12617 ialgr0 12618 algrf 12619 algrp1 12620 pwsbas 13377 pwsplusgval 13380 pwsmulrval 13381 0mhm 13571 pwsinvg 13697 mulgval 13711 mulgfng 13713 mulgnngsum 13716 mulg1 13718 mulgnnp1 13719 mulgnnsubcl 13723 mulgnn0z 13738 mulgnndir 13740 mplsubgfilemm 14715 lmconst 14943 cnconst2 14960 dvidlemap 15418 dvidrelem 15419 dvidsslem 15420 dvconst 15421 dvconstre 15423 dvconstss 15425 dvef 15454 |
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