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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 5530 | . 2 ⊢ (𝐵 ∈ 𝐷 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | fvconst 5837 | . 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 1395 ∈ wcel 2200 {csn 3667 × cxp 4721 ⟶wf 5320 ‘cfv 5324 |
| 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 714 ax-5 1493 ax-7 1494 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-10 1551 ax-11 1552 ax-i12 1553 ax-bndl 1555 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-i5r 1581 ax-14 2203 ax-ext 2211 ax-sep 4205 ax-pow 4262 ax-pr 4297 |
| This theorem depends on definitions: df-bi 117 df-3an 1004 df-tru 1398 df-nf 1507 df-sb 1809 df-eu 2080 df-mo 2081 df-clab 2216 df-cleq 2222 df-clel 2225 df-nfc 2361 df-ral 2513 df-rex 2514 df-v 2802 df-sbc 3030 df-un 3202 df-in 3204 df-ss 3211 df-pw 3652 df-sn 3673 df-pr 3674 df-op 3676 df-uni 3892 df-br 4087 df-opab 4149 df-mpt 4150 df-id 4388 df-xp 4729 df-rel 4730 df-cnv 4731 df-co 4732 df-dm 4733 df-rn 4734 df-iota 5284 df-fun 5326 df-fn 5327 df-f 5328 df-fv 5332 |
| This theorem is referenced by: fconst2g 5864 fvconst2 5865 ofc1g 6252 ofc2g 6253 caofid0l 6257 caofid0r 6258 caofid1 6259 caofid2 6260 ser0 10788 exp3vallem 10795 exp3val 10796 exp1 10800 expp1 10801 resqrexlem1arp 11559 resqrexlemf1 11562 climconst2 11845 climaddc1 11883 climmulc2 11885 climsubc1 11886 climsubc2 11887 climlec2 11895 prodf1 12096 prod0 12139 ialgrlemconst 12608 ialgr0 12609 algrf 12610 algrp1 12611 pwsbas 13368 pwsplusgval 13371 pwsmulrval 13372 0mhm 13562 pwsinvg 13688 mulgval 13702 mulgfng 13704 mulgnngsum 13707 mulg1 13709 mulgnnp1 13710 mulgnnsubcl 13714 mulgnn0z 13729 mulgnndir 13731 mplsubgfilemm 14705 lmconst 14933 cnconst2 14950 dvidlemap 15408 dvidrelem 15409 dvidsslem 15410 dvconst 15411 dvconstre 15413 dvconstss 15415 dvef 15444 |
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