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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 6679 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
2 | fvelrnb 6720 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
3 | eqcom 2828 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
4 | 3 | rexbii 3247 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
5 | 2, 4 | syl6bb 289 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
7 | 6 | adantl 484 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
8 | 1, 5, 7 | ralxfr2d 5302 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 208 ∧ wa 398 = wceq 1533 ∈ wcel 2110 ∀wral 3138 ∃wrex 3139 Vcvv 3494 ran crn 5550 Fn wfn 6344 ‘cfv 6349 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1792 ax-4 1806 ax-5 1907 ax-6 1966 ax-7 2011 ax-8 2112 ax-9 2120 ax-10 2141 ax-11 2157 ax-12 2173 ax-ext 2793 ax-sep 5195 ax-nul 5202 ax-pr 5321 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1536 df-ex 1777 df-nf 1781 df-sb 2066 df-mo 2618 df-eu 2650 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3496 df-sbc 3772 df-dif 3938 df-un 3940 df-in 3942 df-ss 3951 df-nul 4291 df-if 4467 df-sn 4561 df-pr 4563 df-op 4567 df-uni 4832 df-br 5059 df-opab 5121 df-mpt 5139 df-id 5454 df-xp 5555 df-rel 5556 df-cnv 5557 df-co 5558 df-dm 5559 df-rn 5560 df-iota 6308 df-fun 6351 df-fn 6352 df-fv 6357 |
This theorem is referenced by: ralrnmptw 6854 ralrnmpt 6856 cbvfo 7039 isoselem 7088 indexfi 8826 ordtypelem9 8984 ordtypelem10 8985 wemapwe 9154 numacn 9469 acndom 9471 rpnnen1lem3 12372 fsequb2 13338 limsuple 14829 limsupval2 14831 climsup 15020 ruclem11 15587 ruclem12 15588 prmreclem6 16251 imasaddfnlem 16795 imasvscafn 16804 cycsubgcl 18343 ghmrn 18365 ghmnsgima 18376 pgpssslw 18733 gexex 18967 dprdfcntz 19131 znf1o 20692 frlmlbs 20935 lindfrn 20959 ptcnplem 22223 kqt0lem 22338 isr0 22339 regr1lem2 22342 uzrest 22499 tmdgsum2 22698 imasf1oxmet 22979 imasf1omet 22980 bndth 23556 evth 23557 ovolficcss 24064 ovollb2lem 24083 ovolunlem1 24092 ovoliunlem1 24097 ovoliunlem2 24098 ovoliun2 24101 ovolscalem1 24108 ovolicc1 24111 voliunlem2 24146 voliunlem3 24147 ioombl1lem4 24156 uniioovol 24174 uniioombllem2 24178 uniioombllem3 24180 uniioombllem6 24183 volsup2 24200 vitalilem3 24205 mbfsup 24259 mbfinf 24260 mbflimsup 24261 itg1ge0 24281 itg1mulc 24299 itg1climres 24309 mbfi1fseqlem4 24313 itg2seq 24337 itg2monolem1 24345 itg2mono 24348 itg2i1fseq2 24351 itg2gt0 24355 itg2cnlem1 24356 itg2cn 24358 limciun 24486 plycpn 24872 hmopidmchi 29922 hmopidmpji 29923 rge0scvg 31187 mclsax 32811 mblfinlem2 34924 ismtyhmeolem 35076 nacsfix 39302 fnwe2lem2 39644 gneispace 40477 climinf 41880 liminfval2 42042 |
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