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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 5589 | . 2 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶{𝐵}) | |
| 2 | snssi 3859 | . 2 ⊢ (𝐵 ∈ 𝐶 → {𝐵} ⊆ 𝐶) | |
| 3 | fss 5546 | . 2 ⊢ (((𝐴 × {𝐵}):𝐴⟶{𝐵} ∧ {𝐵} ⊆ 𝐶) → (𝐴 × {𝐵}):𝐴⟶𝐶) | |
| 4 | 1, 2, 3 | syl2anc 415 | 1 ⊢ (𝐵 ∈ 𝐶 → (𝐴 × {𝐵}):𝐴⟶𝐶) |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 ⊆ wss 3220 {csn 3709 × cxp 4772 ⟶wf 5373 |
| This proof depends on 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 4249 ax-pow 4311 ax-pr 4346 |
| This proof 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-un 3224 df-in 3226 df-ss 3233 df-pw 3690 df-sn 3715 df-pr 3716 df-op 3718 df-br 4131 df-opab 4193 df-mpt 4194 df-id 4438 df-xp 4780 df-rel 4781 df-cnv 4782 df-co 4783 df-dm 4784 df-rn 4785 df-fun 5379 df-fn 5380 df-f 5381 |
| This theorem is used by: fconst6 5592 map0g 6969 fdiagfn 6974 mapsncnv 6977 ctm 7450 0mhm 13844 pwsdiagel 14261 pwsmnd 14263 pws0g 14264 pwsgrp 14265 pwsinvg 14266 psr0cl 15124 lmconst 15369 cnconst2 15386 dvconst 15847 dvconstre 15849 dvconstss 15851 |
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