| Intuitionistic Logic Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > ILE Home > Th. List > ffvelcdmi | GIF version | ||
| Description: A function's value belongs to its codomain. (Contributed by NM, 6-Apr-2005.) |
| Ref | Expression |
|---|---|
| ffvelcdmi.1 | ⊢ 𝐹:𝐴⟶𝐵 |
| Ref | Expression |
|---|---|
| ffvelcdmi | ⊢ (𝐶 ∈ 𝐴 → (𝐹‘𝐶) ∈ 𝐵) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ffvelcdmi.1 | . 2 ⊢ 𝐹:𝐴⟶𝐵 | |
| 2 | ffvelcdm 5776 | . 2 ⊢ ((𝐹:𝐴⟶𝐵 ∧ 𝐶 ∈ 𝐴) → (𝐹‘𝐶) ∈ 𝐵) | |
| 3 | 1, 2 | mpan 424 | 1 ⊢ (𝐶 ∈ 𝐴 → (𝐹‘𝐶) ∈ 𝐵) |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 ⟶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-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: omgadd 11058 cjcl 11402 climmpt 11854 cn1lem 11868 climcn1lem 11873 fsumrelem 12025 efcl 12218 sincl 12260 coscl 12261 algcvg 12613 algcvgb 12615 algcvga 12616 algfx 12617 eucalgcvga 12623 eucalg 12624 sqpweven 12740 2sqpwodd 12741 ennnfonelemnn0 13036 relogcl 15579 nninfomnilem 16570 |
| Copyright terms: Public domain | W3C validator |