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Mirrors > Home > ILE Home > Th. List > fconst6g | GIF version |
Description: Constant function with loose range. (Contributed by Stefan O'Rear, 1-Feb-2015.) |
Ref | Expression |
---|---|
fconst6g | ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶𝐶) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fconstg 5319 | . 2 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
2 | snssi 3664 | . 2 ⊢ (𝐵 ∈ 𝐶 → {𝐵} ⊆ 𝐶) | |
3 | fss 5284 | . 2 ⊢ (((𝐴 × {𝐵}):𝐴⟶{𝐵} ∧ {𝐵} ⊆ 𝐶) → (𝐴 × {𝐵}):𝐴⟶𝐶) | |
4 | 1, 2, 3 | syl2anc 408 | 1 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶𝐶) |
Colors of variables: wff set class |
Syntax hints: → wi 4 ∈ wcel 1480 ⊆ wss 3071 {csn 3527 × cxp 4537 ⟶wf 5119 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 105 ax-ia2 106 ax-ia3 107 ax-io 698 ax-5 1423 ax-7 1424 ax-gen 1425 ax-ie1 1469 ax-ie2 1470 ax-8 1482 ax-10 1483 ax-11 1484 ax-i12 1485 ax-bndl 1486 ax-4 1487 ax-14 1492 ax-17 1506 ax-i9 1510 ax-ial 1514 ax-i5r 1515 ax-ext 2121 ax-sep 4046 ax-pow 4098 ax-pr 4131 |
This theorem depends on definitions: df-bi 116 df-3an 964 df-tru 1334 df-nf 1437 df-sb 1736 df-eu 2002 df-mo 2003 df-clab 2126 df-cleq 2132 df-clel 2135 df-nfc 2270 df-ral 2421 df-rex 2422 df-v 2688 df-un 3075 df-in 3077 df-ss 3084 df-pw 3512 df-sn 3533 df-pr 3534 df-op 3536 df-br 3930 df-opab 3990 df-mpt 3991 df-id 4215 df-xp 4545 df-rel 4546 df-cnv 4547 df-co 4548 df-dm 4549 df-rn 4550 df-fun 5125 df-fn 5126 df-f 5127 |
This theorem is referenced by: fconst6 5322 map0g 6582 fdiagfn 6586 mapsncnv 6589 ctm 6994 lmconst 12385 cnconst2 12402 dvconst 12830 |
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