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Mirrors > Home > MPE Home > Th. List > off | Structured version Visualization version GIF version |
Description: The function operation produces a function. (Contributed by Mario Carneiro, 20-Jul-2014.) |
Ref | Expression |
---|---|
off.1 | ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑇)) → (𝑥𝑅𝑦) ∈ 𝑈) |
off.2 | ⊢ (𝜑 → 𝐹:𝐴⟶𝑆) |
off.3 | ⊢ (𝜑 → 𝐺:𝐵⟶𝑇) |
off.4 | ⊢ (𝜑 → 𝐴 ∈ 𝑉) |
off.5 | ⊢ (𝜑 → 𝐵 ∈ 𝑊) |
off.6 | ⊢ (𝐴 ∩ 𝐵) = 𝐶 |
Ref | Expression |
---|---|
off | ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺):𝐶⟶𝑈) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | off.2 | . . . 4 ⊢ (𝜑 → 𝐹:𝐴⟶𝑆) | |
2 | 1 | ffnd 6585 | . . 3 ⊢ (𝜑 → 𝐹 Fn 𝐴) |
3 | off.3 | . . . 4 ⊢ (𝜑 → 𝐺:𝐵⟶𝑇) | |
4 | 3 | ffnd 6585 | . . 3 ⊢ (𝜑 → 𝐺 Fn 𝐵) |
5 | off.4 | . . 3 ⊢ (𝜑 → 𝐴 ∈ 𝑉) | |
6 | off.5 | . . 3 ⊢ (𝜑 → 𝐵 ∈ 𝑊) | |
7 | off.6 | . . 3 ⊢ (𝐴 ∩ 𝐵) = 𝐶 | |
8 | eqidd 2739 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) = (𝐹‘𝑧)) | |
9 | eqidd 2739 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐵) → (𝐺‘𝑧) = (𝐺‘𝑧)) | |
10 | 2, 4, 5, 6, 7, 8, 9 | offval 7520 | . 2 ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺) = (𝑧 ∈ 𝐶 ↦ ((𝐹‘𝑧)𝑅(𝐺‘𝑧)))) |
11 | inss1 4159 | . . . . . 6 ⊢ (𝐴 ∩ 𝐵) ⊆ 𝐴 | |
12 | 7, 11 | eqsstrri 3952 | . . . . 5 ⊢ 𝐶 ⊆ 𝐴 |
13 | 12 | sseli 3913 | . . . 4 ⊢ (𝑧 ∈ 𝐶 → 𝑧 ∈ 𝐴) |
14 | ffvelrn 6941 | . . . 4 ⊢ ((𝐹:𝐴⟶𝑆 ∧ 𝑧 ∈ 𝐴) → (𝐹‘𝑧) ∈ 𝑆) | |
15 | 1, 13, 14 | syl2an 595 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐶) → (𝐹‘𝑧) ∈ 𝑆) |
16 | inss2 4160 | . . . . . 6 ⊢ (𝐴 ∩ 𝐵) ⊆ 𝐵 | |
17 | 7, 16 | eqsstrri 3952 | . . . . 5 ⊢ 𝐶 ⊆ 𝐵 |
18 | 17 | sseli 3913 | . . . 4 ⊢ (𝑧 ∈ 𝐶 → 𝑧 ∈ 𝐵) |
19 | ffvelrn 6941 | . . . 4 ⊢ ((𝐺:𝐵⟶𝑇 ∧ 𝑧 ∈ 𝐵) → (𝐺‘𝑧) ∈ 𝑇) | |
20 | 3, 18, 19 | syl2an 595 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐶) → (𝐺‘𝑧) ∈ 𝑇) |
21 | off.1 | . . . . 5 ⊢ ((𝜑 ∧ (𝑥 ∈ 𝑆 ∧ 𝑦 ∈ 𝑇)) → (𝑥𝑅𝑦) ∈ 𝑈) | |
22 | 21 | ralrimivva 3114 | . . . 4 ⊢ (𝜑 → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) |
23 | 22 | adantr 480 | . . 3 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐶) → ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) |
24 | ovrspc2v 7281 | . . 3 ⊢ ((((𝐹‘𝑧) ∈ 𝑆 ∧ (𝐺‘𝑧) ∈ 𝑇) ∧ ∀𝑥 ∈ 𝑆 ∀𝑦 ∈ 𝑇 (𝑥𝑅𝑦) ∈ 𝑈) → ((𝐹‘𝑧)𝑅(𝐺‘𝑧)) ∈ 𝑈) | |
25 | 15, 20, 23, 24 | syl21anc 834 | . 2 ⊢ ((𝜑 ∧ 𝑧 ∈ 𝐶) → ((𝐹‘𝑧)𝑅(𝐺‘𝑧)) ∈ 𝑈) |
26 | 10, 25 | fmpt3d 6972 | 1 ⊢ (𝜑 → (𝐹 ∘f 𝑅𝐺):𝐶⟶𝑈) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ wa 395 = wceq 1539 ∈ wcel 2108 ∀wral 3063 ∩ cin 3882 ⟶wf 6414 ‘cfv 6418 (class class class)co 7255 ∘f cof 7509 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1799 ax-4 1813 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2110 ax-9 2118 ax-10 2139 ax-11 2156 ax-12 2173 ax-ext 2709 ax-rep 5205 ax-sep 5218 ax-nul 5225 ax-pr 5347 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3an 1087 df-tru 1542 df-fal 1552 df-ex 1784 df-nf 1788 df-sb 2069 df-mo 2540 df-eu 2569 df-clab 2716 df-cleq 2730 df-clel 2817 df-nfc 2888 df-ne 2943 df-ral 3068 df-rex 3069 df-reu 3070 df-rab 3072 df-v 3424 df-sbc 3712 df-csb 3829 df-dif 3886 df-un 3888 df-in 3890 df-ss 3900 df-nul 4254 df-if 4457 df-sn 4559 df-pr 4561 df-op 4565 df-uni 4837 df-iun 4923 df-br 5071 df-opab 5133 df-mpt 5154 df-id 5480 df-xp 5586 df-rel 5587 df-cnv 5588 df-co 5589 df-dm 5590 df-rn 5591 df-res 5592 df-ima 5593 df-iota 6376 df-fun 6420 df-fn 6421 df-f 6422 df-f1 6423 df-fo 6424 df-f1o 6425 df-fv 6426 df-ov 7258 df-oprab 7259 df-mpo 7260 df-of 7511 |
This theorem is referenced by: suppofssd 7990 o1of2 15250 ghmplusg 19362 gsumzaddlem 19437 gsumzadd 19438 lcomf 20077 frlmup1 20915 psrbagaddcl 21041 psrbagaddclOLD 21042 psraddcl 21062 psrvscacl 21072 psrbagev1 21195 psrbagev1OLD 21196 evlslem3 21200 mndvcl 21450 tsmsadd 23206 mbfmulc2lem 24716 mbfaddlem 24729 i1fadd 24764 i1fmul 24765 itg1addlem4 24768 itg1addlem4OLD 24769 i1fmulclem 24772 i1fmulc 24773 mbfi1flimlem 24792 itg2mulclem 24816 itg2mulc 24817 itg2monolem1 24820 itg2addlem 24828 dvaddbr 25007 dvmulbr 25008 dvaddf 25011 dvmulf 25012 dv11cn 25070 plyaddlem 25281 coeeulem 25290 coeaddlem 25315 plydivlem4 25361 jensenlem2 26042 jensen 26043 basellem7 26141 basellem9 26143 dchrmulcl 26302 ofrn 30877 offinsupp1 30964 fedgmullem1 31612 sibfof 32207 signshf 32467 circlemethhgt 32523 poimirlem23 35727 poimirlem24 35728 poimirlem25 35729 poimirlem29 35733 poimirlem30 35734 poimirlem31 35735 poimirlem32 35736 itg2addnc 35758 ftc1anclem3 35779 ftc1anclem6 35782 ftc1anclem8 35784 lfladdcl 37012 lflvscl 37018 fsuppssind 40205 mhphf 40208 mzpclall 40465 mzpindd 40484 expgrowth 41842 binomcxplemnotnn0 41863 dvdivcncf 43358 ofaddmndmap 45567 amgmwlem 46392 |
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