| Mathbox for Thierry Arnoux |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > ofcf | Structured version Visualization version GIF version | ||
| Description: The function/constant operation produces a function. (Contributed by Thierry Arnoux, 30-Jan-2017.) |
| Ref | Expression |
|---|---|
| ofcf.1 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑇)) → (𝑥𝑅𝑦) ∈ 𝑈) |
| ofcf.2 | ⊢ (𝜑 → 𝐹:𝐴⟶𝑆) |
| ofcf.4 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
| ofcf.5 | ⊢ (𝜑 → 𝐶 ∈ 𝑇) |
| Ref | Expression |
|---|---|
| ofcf | ⊢ (𝜑 → (𝐹 ∘f/c 𝑅𝐶):𝐴⟶𝑈) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ofcf.2 | . . . 4 ⊢ (𝜑 → 𝐹:𝐴⟶𝑆) | |
| 2 | 1 | ffnd 6710 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝐴) |
| 3 | ofcf.4 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
| 4 | ofcf.5 | . . 3 ⊢ (𝜑 → 𝐶 ∈ 𝑇) | |
| 5 | eqidd 2761 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) = (𝐹‘𝑧)) | |
| 6 | 2, 3, 4, 5 | ofcfval 34730 | . 2 ⊢ (𝜑 → (𝐹 ∘f/c 𝑅𝐶) = (𝑧 ∈ 𝐴 ↦ ((𝐹‘𝑧)𝑅𝐶))) |
| 7 | 1 | ffvelcdmda 7084 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ 𝑆) |
| 8 | 4 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → 𝐶 ∈ 𝑇) |
| 9 | ofcf.1 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑇)) → (𝑥𝑅𝑦) ∈ 𝑈) | |
| 10 | 9 | ralrimivva 3205 | . . . 4 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) |
| 11 | 10 | adantr 486 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) |
| 12 | ovrspc2v 7446 | . . 3 ⊢ ((((𝐹‘𝑧) ∈ 𝑆 ∧ 𝐶 ∈ 𝑇) ∧ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) → ((𝐹‘𝑧)𝑅𝐶) ∈ 𝑈) | |
| 13 | 7, 8, 11, 12 | syl21anc 851 | . 2 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → ((𝐹‘𝑧)𝑅𝐶) ∈ 𝑈) |
| 14 | 6, 13 | fmpt3d 7116 | 1 ⊢ (𝜑 → (𝐹 ∘f/c 𝑅𝐶):𝐴⟶𝑈) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∧ wa 401 ∈ wcel 2144 ∀wral 3076 ⟶wf 6534 ‘cfv 6538 (class class class)co 7420 ∘f/c cofc 34727 |
| 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-11 2193 ax-12 2212 ax-ext 2732 ax-rep 5231 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-nfc 2909 df-ne 2956 df-ral 3077 df-rex 3087 df-reu 3366 df-rab 3413 df-v 3452 df-sbc 3739 df-csb 3847 df-ss 3896 df-dif 4047 df-in 4091 df-un 4151 df-nul 4279 df-if 4482 df-sn 4584 df-pr 4586 df-op 4590 df-uni 4867 df-iun 4952 df-br 5103 df-opab 5167 df-mpt 5186 df-id 5545 df-xp 5656 df-rel 5657 df-cnv 5658 df-co 5659 df-dm 5660 df-rn 5661 df-res 5662 df-ima 5663 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 7423 df-oprab 7424 df-mpo 7425 df-ofc 34728 |
| This theorem is used by: signshf 35217 |
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