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| Mirrors > Home > MPE Home > Th. List > elmapfun | Structured version Visualization version GIF version | ||
| Description: A mapping is always a function. (Contributed by Stefan O'Rear, 9-Oct-2014.) (Revised by Stefan O'Rear, 5-May-2015.) |
| Ref | Expression |
|---|---|
| elmapfun | ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → Fun 𝐴) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | elmapi 8789 | . 2 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → 𝐴:𝐶⟶𝐵) | |
| 2 | 1 | ffund 6666 | 1 ⊢ (𝐴 ∈ (𝐵 ↑m 𝐶) → Fun 𝐴) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 Fun wfun 6486 (class class class)co 7360 ↑m cmap 8766 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5231 ax-nul 5241 ax-pow 5302 ax-pr 5370 ax-un 7682 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-sbc 3730 df-csb 3839 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-pw 4544 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-iun 4936 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5519 df-xp 5630 df-rel 5631 df-cnv 5632 df-co 5633 df-dm 5634 df-rn 5635 df-res 5636 df-ima 5637 df-iota 6448 df-fun 6494 df-fn 6495 df-f 6496 df-fv 6500 df-ov 7363 df-oprab 7364 df-mpo 7365 df-1st 7935 df-2nd 7936 df-map 8768 |
| This theorem is referenced by: mndpsuppss 18724 fsfnn0gsumfsffz 19949 frlmbas 21745 islindf4 21828 ltbwe 22032 psrbasfsupp 33687 mbfmfun 34413 eulerpartgbij 34532 uncf 37934 pwfi2f1o 43542 hoicvr 46994 ovnovollem1 47102 ovnovollem2 47103 domnmsuppn0 48857 rmsuppss 48858 scmsuppss 48859 lincext2 48943 |
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