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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 2763 | . . 3 ⊢ (𝐴 ∩ 𝐵) = (𝐴 ∩ 𝐵) | |
| 6 | 1, 2, 3, 4, 5 | offn 7689 | . 2 ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺) Fn (𝐴 ∩ 𝐵)) |
| 7 | fnfun 6637 | . 2 ⊢ ((𝐹 ∘f 𝑅𝐺) Fn (𝐴 ∩ 𝐵) → Fun (𝐹 ∘f 𝑅𝐺)) | |
| 8 | 6, 7 | syl 18 | 1 ⊢ (𝜑 → Fun (𝐹 ∘f 𝑅𝐺)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ∈ wcel 2143 ∩ cin 3905 Fun wfun 6532 Fn wfn 6533 (class class class)co 7412 ∘f cof 7674 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1825 ax-4 1839 ax-5 1940 ax-6 1997 ax-7 2038 ax-8 2145 ax-9 2153 ax-10 2176 ax-11 2192 ax-12 2213 ax-ext 2735 ax-rep 5239 ax-sep 5258 ax-nul 5270 ax-pr 5406 |
| This theorem depends on definitions: df-bi 210 df-an 401 df-or 861 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1810 df-nf 1814 df-sb 2097 df-mo 2567 df-eu 2597 df-clab 2742 df-cleq 2755 df-clel 2838 df-nfc 2912 df-ne 2959 df-ral 3080 df-rex 3090 df-reu 3370 df-rab 3417 df-v 3457 df-sbc 3746 df-csb 3855 df-dif 3909 df-un 3911 df-in 3913 df-ss 3923 df-nul 4288 df-if 4489 df-sn 4591 df-pr 4593 df-op 4597 df-uni 4874 df-iun 4959 df-br 5111 df-opab 5175 df-mpt 5194 df-id 5558 df-xp 5669 df-rel 5670 df-cnv 5671 df-co 5672 df-dm 5673 df-rn 5674 df-res 5675 df-ima 5676 df-iota 6494 df-fun 6540 df-fn 6541 df-f 6542 df-f1 6543 df-fo 6544 df-f1o 6545 df-fv 6546 df-ov 7415 df-oprab 7416 df-mpo 7417 df-of 7676 |
| This theorem is referenced by: mndpsuppss 18824 mndpfsupp 18826 lcomfsupp 21004 frlmphl 21912 frlmsslsp 21927 psrbagev1 22209 mhpmulcl 22293 mplvrpmrhm 33918 |
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