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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 2761 | . . 3 ⊢ (𝐴 ∩ 𝐵) = (𝐴 ∩ 𝐵) | |
| 6 | 1, 2, 3, 4, 5 | offn 7667 | . 2 ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺) Fn (𝐴 ∩ 𝐵)) |
| 7 | fnfun 6615 | . 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 2141 ∩ cin 3901 Fun wfun 6509 Fn wfn 6510 (class class class)co 7390 ∘f cof 7652 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1814 ax-4 1828 ax-5 1929 ax-6 1986 ax-7 2027 ax-8 2143 ax-9 2151 ax-10 2174 ax-11 2190 ax-12 2211 ax-ext 2733 ax-rep 5224 ax-sep 5243 ax-nul 5253 ax-pr 5387 |
| This theorem depends on definitions: df-bi 209 df-an 400 df-or 859 df-3an 1099 df-tru 1562 df-fal 1572 df-ex 1799 df-nf 1803 df-sb 2090 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3076 df-rex 3086 df-reu 3367 df-rab 3414 df-v 3455 df-sbc 3743 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-nul 4284 df-if 4478 df-sn 4580 df-pr 4582 df-op 4586 df-uni 4863 df-iun 4948 df-br 5098 df-opab 5160 df-mpt 5179 df-id 5538 df-xp 5649 df-rel 5650 df-cnv 5651 df-co 5652 df-dm 5653 df-rn 5654 df-res 5655 df-ima 5656 df-iota 6471 df-fun 6517 df-fn 6518 df-f 6519 df-f1 6520 df-fo 6521 df-f1o 6522 df-fv 6523 df-ov 7393 df-oprab 7394 df-mpo 7395 df-of 7654 |
| This theorem is referenced by: mndpsuppss 18789 mndpfsupp 18791 lcomfsupp 20956 frlmphl 21820 frlmsslsp 21835 psrbagev1 22117 mhpmulcl 22201 mplvrpmrhm 33804 |
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