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Mirrors > Home > MPE Home > Th. List > Mathboxes > fdivpm | Structured version Visualization version GIF version |
Description: The quotient of two functions into the complex numbers is a partial function. (Contributed by AV, 16-May-2020.) |
Ref | Expression |
---|---|
fdivpm | ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → (𝐹 /f 𝐺) ∈ (ℂ ↑pm 𝐴)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | cnex 10883 | . . 3 ⊢ ℂ ∈ V | |
2 | 1 | a1i 11 | . 2 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → ℂ ∈ V) |
3 | simp3 1136 | . 2 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → 𝐴 ∈ 𝑉) | |
4 | fdivmptf 45775 | . 2 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → (𝐹 /f 𝐺):(𝐺 supp 0)⟶ℂ) | |
5 | suppssdm 7964 | . . 3 ⊢ (𝐺 supp 0) ⊆ dom 𝐺 | |
6 | fdm 6593 | . . . . 5 ⊢ (𝐺:𝐴⟶ℂ → dom 𝐺 = 𝐴) | |
7 | 6 | eqcomd 2744 | . . . 4 ⊢ (𝐺:𝐴⟶ℂ → 𝐴 = dom 𝐺) |
8 | 7 | 3ad2ant2 1132 | . . 3 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → 𝐴 = dom 𝐺) |
9 | 5, 8 | sseqtrrid 3970 | . 2 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → (𝐺 supp 0) ⊆ 𝐴) |
10 | elpm2r 8591 | . 2 ⊢ (((ℂ ∈ V ∧ 𝐴 ∈ 𝑉) ∧ ((𝐹 /f 𝐺):(𝐺 supp 0)⟶ℂ ∧ (𝐺 supp 0) ⊆ 𝐴)) → (𝐹 /f 𝐺) ∈ (ℂ ↑pm 𝐴)) | |
11 | 2, 3, 4, 9, 10 | syl22anc 835 | 1 ⊢ ((𝐹:𝐴⟶ℂ ∧ 𝐺:𝐴⟶ℂ ∧ 𝐴 ∈ 𝑉) → (𝐹 /f 𝐺) ∈ (ℂ ↑pm 𝐴)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ∧ w3a 1085 = wceq 1539 ∈ wcel 2108 Vcvv 3422 ⊆ wss 3883 dom cdm 5580 ⟶wf 6414 (class class class)co 7255 supp csupp 7948 ↑pm cpm 8574 ℂcc 10800 0cc0 10802 /f cfdiv 45771 |
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-pow 5283 ax-pr 5347 ax-un 7566 ax-cnex 10858 ax-resscn 10859 ax-1cn 10860 ax-icn 10861 ax-addcl 10862 ax-addrcl 10863 ax-mulcl 10864 ax-mulrcl 10865 ax-mulcom 10866 ax-addass 10867 ax-mulass 10868 ax-distr 10869 ax-i2m1 10870 ax-1ne0 10871 ax-1rid 10872 ax-rnegex 10873 ax-rrecex 10874 ax-cnre 10875 ax-pre-lttri 10876 ax-pre-lttrn 10877 ax-pre-ltadd 10878 ax-pre-mulgt0 10879 |
This theorem depends on definitions: df-bi 206 df-an 396 df-or 844 df-3or 1086 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-nel 3049 df-ral 3068 df-rex 3069 df-reu 3070 df-rmo 3071 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-pw 4532 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-po 5494 df-so 5495 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-riota 7212 df-ov 7258 df-oprab 7259 df-mpo 7260 df-of 7511 df-supp 7949 df-er 8456 df-pm 8576 df-en 8692 df-dom 8693 df-sdom 8694 df-pnf 10942 df-mnf 10943 df-xr 10944 df-ltxr 10945 df-le 10946 df-sub 11137 df-neg 11138 df-div 11563 df-fdiv 45772 |
This theorem is referenced by: (None) |
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