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| Mirrors > Home > MPE Home > Th. List > offun | Structured version Visualization version GIF version | ||
| Description: The function operation produces a function. (Contributed by SN, 23-Jul-2024.) |
| Ref | Expression |
|---|---|
| offun.1 | ⊢ (𝜑 → 𝐹 Fn 𝐴) |
| offun.2 | ⊢ (𝜑 → 𝐺 Fn 𝐵) |
| offun.3 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| offun.4 | ⊢ (𝜑 → 𝐵 ∈ 𝑊) |
| Ref | Expression |
|---|---|
| offun | ⊢ (𝜑 → Fun (𝐹 ∘f 𝑅𝐺)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | offun.1 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝐴) | |
| 2 | offun.2 | . . 3 ⊢ (𝜑 → 𝐺 Fn 𝐵) | |
| 3 | offun.3 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 4 | offun.4 | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑊) | |
| 5 | eqid 2737 | . . 3 ⊢ (𝐴 ∩ 𝐵) = (𝐴 ∩ 𝐵) | |
| 6 | 1, 2, 3, 4, 5 | offn 7646 | . 2 ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺) Fn (𝐴 ∩ 𝐵)) |
| 7 | fnfun 6600 | . 2 ⊢ ((𝐹 ∘f 𝑅𝐺) Fn (𝐴 ∩ 𝐵) → Fun (𝐹 ∘f 𝑅𝐺)) | |
| 8 | 6, 7 | syl 17 | 1 ⊢ (𝜑 → Fun (𝐹 ∘f 𝑅𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2114 ∩ cin 3889 Fun wfun 6494 Fn wfn 6495 (class class class)co 7369 ∘f cof 7631 |
| 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-rep 5213 ax-sep 5232 ax-nul 5242 ax-pr 5376 |
| 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-reu 3344 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-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 5527 df-xp 5638 df-rel 5639 df-cnv 5640 df-co 5641 df-dm 5642 df-rn 5643 df-res 5644 df-ima 5645 df-iota 6456 df-fun 6502 df-fn 6503 df-f 6504 df-f1 6505 df-fo 6506 df-f1o 6507 df-fv 6508 df-ov 7372 df-oprab 7373 df-mpo 7374 df-of 7633 |
| This theorem is referenced by: mndpsuppss 18735 mndpfsupp 18737 lcomfsupp 20899 frlmphl 21763 frlmsslsp 21778 psrbagev1 22057 mhpmulcl 22117 mplvrpmrhm 33693 |
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