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Mirrors > Home > MPE Home > Th. List > ralrn | Structured version Visualization version GIF version |
Description: Restricted universal quantification over the range of a function. (Contributed by Mario Carneiro, 24-Dec-2013.) (Revised by Mario Carneiro, 20-Aug-2014.) |
Ref | Expression |
---|---|
rexrn.1 | ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) |
Ref | Expression |
---|---|
ralrn | ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | fvexd 6241 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
2 | fvelrnb 6282 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
3 | eqcom 2658 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
4 | 3 | rexbii 3070 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
5 | 2, 4 | syl6bb 276 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
7 | 6 | adantl 481 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
8 | 1, 5, 7 | ralxfr2d 4912 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 196 ∧ wa 383 = wceq 1523 ∈ wcel 2030 ∀wral 2941 ∃wrex 2942 Vcvv 3231 ran crn 5144 Fn wfn 5921 ‘cfv 5926 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1762 ax-4 1777 ax-5 1879 ax-6 1945 ax-7 1981 ax-9 2039 ax-10 2059 ax-11 2074 ax-12 2087 ax-13 2282 ax-ext 2631 ax-sep 4814 ax-nul 4822 ax-pr 4936 |
This theorem depends on definitions: df-bi 197 df-or 384 df-an 385 df-3an 1056 df-tru 1526 df-ex 1745 df-nf 1750 df-sb 1938 df-eu 2502 df-mo 2503 df-clab 2638 df-cleq 2644 df-clel 2647 df-nfc 2782 df-ral 2946 df-rex 2947 df-rab 2950 df-v 3233 df-sbc 3469 df-dif 3610 df-un 3612 df-in 3614 df-ss 3621 df-nul 3949 df-if 4120 df-sn 4211 df-pr 4213 df-op 4217 df-uni 4469 df-br 4686 df-opab 4746 df-mpt 4763 df-id 5053 df-xp 5149 df-rel 5150 df-cnv 5151 df-co 5152 df-dm 5153 df-rn 5154 df-iota 5889 df-fun 5928 df-fn 5929 df-fv 5934 |
This theorem is referenced by: ralrnmpt 6408 cbvfo 6584 isoselem 6631 indexfi 8315 ordtypelem9 8472 ordtypelem10 8473 wemapwe 8632 numacn 8910 acndom 8912 rpnnen1lem3 11854 rpnnen1lem3OLD 11860 fsequb2 12815 limsuple 14253 limsupval2 14255 climsup 14444 ruclem11 15013 ruclem12 15014 prmreclem6 15672 imasaddfnlem 16235 imasvscafn 16244 cycsubgcl 17667 ghmrn 17720 ghmnsgima 17731 pgpssslw 18075 gexex 18302 dprdfcntz 18460 znf1o 19948 frlmlbs 20184 lindfrn 20208 ptcnplem 21472 kqt0lem 21587 isr0 21588 regr1lem2 21591 uzrest 21748 tmdgsum2 21947 imasf1oxmet 22227 imasf1omet 22228 bndth 22804 evth 22805 ovolficcss 23284 ovollb2lem 23302 ovolunlem1 23311 ovoliunlem1 23316 ovoliunlem2 23317 ovoliun2 23320 ovolscalem1 23327 ovolicc1 23330 voliunlem2 23365 voliunlem3 23366 ioombl1lem4 23375 uniioovol 23393 uniioombllem2 23397 uniioombllem3 23399 uniioombllem6 23402 volsup2 23419 vitalilem3 23424 mbfsup 23476 mbfinf 23477 mbflimsup 23478 itg1ge0 23498 itg1mulc 23516 itg1climres 23526 mbfi1fseqlem4 23530 itg2seq 23554 itg2monolem1 23562 itg2mono 23565 itg2i1fseq2 23568 itg2gt0 23572 itg2cnlem1 23573 itg2cn 23575 limciun 23703 plycpn 24089 hmopidmchi 29138 hmopidmpji 29139 rge0scvg 30123 mclsax 31592 mblfinlem2 33577 ismtyhmeolem 33733 nacsfix 37592 fnwe2lem2 37938 gneispace 38749 climinf 40156 liminfval2 40318 |
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