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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 5566 | . 2 ⊢ (𝐵 ∈ 𝐷 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | fvconst 5874 | . 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 1398 ∈ wcel 2205 {csn 3691 × cxp 4749 ⟶wf 5350 ‘cfv 5354 |
| 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 717 ax-5 1496 ax-7 1497 ax-gen 1498 ax-ie1 1542 ax-ie2 1543 ax-8 1553 ax-10 1554 ax-11 1555 ax-i12 1556 ax-bndl 1558 ax-4 1559 ax-17 1575 ax-i9 1579 ax-ial 1583 ax-i5r 1584 ax-14 2208 ax-ext 2216 ax-sep 4230 ax-pow 4289 ax-pr 4324 |
| This theorem depends on definitions: df-bi 117 df-3an 1007 df-tru 1401 df-nf 1510 df-sb 1812 df-eu 2085 df-mo 2086 df-clab 2221 df-cleq 2227 df-clel 2230 df-nfc 2375 df-ral 2527 df-rex 2528 df-v 2817 df-sbc 3045 df-un 3217 df-in 3219 df-ss 3226 df-pw 3673 df-sn 3697 df-pr 3698 df-op 3700 df-uni 3917 df-br 4112 df-opab 4174 df-mpt 4175 df-id 4416 df-xp 4757 df-rel 4758 df-cnv 4759 df-co 4760 df-dm 4761 df-rn 4762 df-iota 5314 df-fun 5356 df-fn 5357 df-f 5358 df-fv 5362 |
| This theorem is referenced by: fconst2g 5901 fvconst2 5902 ofc1g 6290 ofc2g 6291 caofid0l 6295 caofid0r 6296 caofid1 6297 caofid2 6298 fczsupp0 6461 ser0 10902 exp3vallem 10909 exp3val 10910 exp1 10914 expp1 10915 resqrexlem1arp 11698 resqrexlemf1 11701 climconst2 11984 climaddc1 12022 climmulc2 12024 climsubc1 12025 climsubc2 12026 climlec2 12034 prodf1 12236 prod0 12279 ialgrlemconst 12748 ialgr0 12749 algrf 12750 algrp1 12751 pwsbas 13526 pwsplusgval 13529 pwsmulrval 13530 0mhm 13720 pwsinvg 13846 mulgval 13860 mulgfng 13862 mulgnngsum 13865 mulg1 13867 mulgnnp1 13868 mulgnnsubcl 13872 mulgnn0z 13887 mulgnndir 13889 mplsubgfilemm 14902 lmconst 15130 cnconst2 15147 dvidlemap 15605 dvidrelem 15606 dvidsslem 15607 dvconst 15608 dvconstre 15610 dvconstss 15612 dvef 15641 |
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