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| Mirrors > Home > MPE Home > Th. List > fnfvelrnd | Structured version Visualization version GIF version | ||
| Description: A function's value belongs to its range. (Contributed by Glauco Siliprandi, 2-Jan-2022.) |
| Ref | Expression |
|---|---|
| fnfvelrnd.1 | ⊢ (𝜑 → 𝐹 Fn 𝐴) |
| fnfvelrnd.2 | ⊢ (𝜑 → 𝐵 ∈ 𝐴) |
| Ref | Expression |
|---|---|
| fnfvelrnd | ⊢ (𝜑 → (𝐹‘𝐵) ∈ ran 𝐹) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | fnfvelrnd.1 | . 2 ⊢ (𝜑 → 𝐹 Fn 𝐴) | |
| 2 | fnfvelrnd.2 | . 2 ⊢ (𝜑 → 𝐵 ∈ 𝐴) | |
| 3 | fnfvelrn 7083 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝐵 ∈ 𝐴) → (𝐹‘𝐵) ∈ ran 𝐹) | |
| 4 | 1, 2, 3 | syl2anc 596 | 1 ⊢ (𝜑 → (𝐹‘𝐵) ∈ ran 𝐹) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2144 ran crn 5651 Fn wfn 6536 ‘cfv 6541 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1942 ax-6 1999 ax-7 2040 ax-8 2146 ax-9 2154 ax-10 2177 ax-12 2212 ax-ext 2732 ax-sep 5248 ax-nul 5259 ax-pr 5390 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-nf 1816 df-sb 2099 df-mo 2564 df-eu 2594 df-clab 2739 df-cleq 2752 df-clel 2835 df-ne 2956 df-ral 3077 df-rex 3087 df-rab 3413 df-v 3452 df-ss 3897 df-dif 4046 df-in 4090 df-un 4150 df-nul 4278 df-if 4482 df-sn 4585 df-pr 4587 df-op 4835 df-uni 4867 df-br 5103 df-opab 5167 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-iota 6496 df-fun 6543 df-fn 6544 df-fv 6549 |
| This theorem is used by: ghmqusnsg 19503 ghmquskerlem3 19507 ghmqusker 19508 noseqrdglem 28698 tgelrnpln 29261 esplyfvaln 34254 esplyind 34255 mh-inf3f1 37423 ssmapsn 46336 limsupgtlem 46894 |
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