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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 5587 | . 2 ⊢ (𝐵 ∈ 𝐷 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | fvconst 5897 | . 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 1402 ∈ wcel 2209 {csn 3708 × cxp 4770 ⟶wf 5371 ‘cfv 5375 |
| 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 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 4247 ax-pow 4309 ax-pr 4344 |
| This theorem 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 3714 df-pr 3715 df-op 3717 df-uni 3934 df-br 4129 df-opab 4191 df-mpt 4192 df-id 4436 df-xp 4778 df-rel 4779 df-cnv 4780 df-co 4781 df-dm 4782 df-rn 4783 df-iota 5335 df-fun 5377 df-fn 5378 df-f 5379 df-fv 5383 |
| This theorem is referenced by: fconst2g 5924 fvconst2 5925 ofc1g 6318 ofc2g 6319 caofid0l 6323 caofid0r 6324 caofid1 6325 caofid2 6326 fczsupp0 6493 ser0 10953 exp3vallem 10960 exp3val 10961 exp1 10965 expp1 10966 resqrexlem1arp 11754 resqrexlemf1 11757 climconst2 12040 climaddc1 12078 climmulc2 12080 climsubc1 12081 climsubc2 12082 climlec2 12090 prodf1 12292 prod0 12335 ialgrlemconst 12804 ialgr0 12805 algrf 12806 algrp1 12807 0mhm 13776 mulgval 13908 mulgfng 13910 mulgnngzsum 13913 mulg1 13915 mulgnnp1 13916 mulgnnsubcl 13920 mulgnn0z 13935 mulgnndir 13937 gsumconstcmn 14149 pwsbas 14188 pwsplusgval 14191 pwsmulrval 14192 pwsinvg 14198 mplsubgfilemm 15072 lmconst 15300 cnconst2 15317 dvidlemap 15775 dvidrelem 15776 dvidsslem 15777 dvconst 15778 dvconstre 15780 dvconstss 15782 dvef 15811 |
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