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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 6671 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
2 | fvelrnb 6712 | . . 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 5297 | 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 1537 ∈ wcel 2114 ∀wral 3138 ∃wrex 3139 Vcvv 3486 ran crn 5542 Fn wfn 6336 ‘cfv 6341 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1796 ax-4 1810 ax-5 1911 ax-6 1970 ax-7 2015 ax-8 2116 ax-9 2124 ax-10 2145 ax-11 2161 ax-12 2177 ax-ext 2793 ax-sep 5189 ax-nul 5196 ax-pr 5316 |
This theorem depends on definitions: df-bi 209 df-an 399 df-or 844 df-3an 1085 df-tru 1540 df-ex 1781 df-nf 1785 df-sb 2070 df-mo 2622 df-eu 2654 df-clab 2800 df-cleq 2814 df-clel 2893 df-nfc 2963 df-ral 3143 df-rex 3144 df-rab 3147 df-v 3488 df-sbc 3764 df-dif 3927 df-un 3929 df-in 3931 df-ss 3940 df-nul 4280 df-if 4454 df-sn 4554 df-pr 4556 df-op 4560 df-uni 4825 df-br 5053 df-opab 5115 df-mpt 5133 df-id 5446 df-xp 5547 df-rel 5548 df-cnv 5549 df-co 5550 df-dm 5551 df-rn 5552 df-iota 6300 df-fun 6343 df-fn 6344 df-fv 6349 |
This theorem is referenced by: ralrnmptw 6846 ralrnmpt 6848 cbvfo 7031 isoselem 7080 indexfi 8818 ordtypelem9 8976 ordtypelem10 8977 wemapwe 9146 numacn 9461 acndom 9463 rpnnen1lem3 12365 fsequb2 13334 limsuple 14820 limsupval2 14822 climsup 15011 ruclem11 15578 ruclem12 15579 prmreclem6 16240 imasaddfnlem 16784 imasvscafn 16793 cycsubgcl 18332 ghmrn 18354 ghmnsgima 18365 pgpssslw 18722 gexex 18956 dprdfcntz 19120 znf1o 20681 frlmlbs 20924 lindfrn 20948 ptcnplem 22212 kqt0lem 22327 isr0 22328 regr1lem2 22331 uzrest 22488 tmdgsum2 22687 imasf1oxmet 22968 imasf1omet 22969 bndth 23545 evth 23546 ovolficcss 24053 ovollb2lem 24072 ovolunlem1 24081 ovoliunlem1 24086 ovoliunlem2 24087 ovoliun2 24090 ovolscalem1 24097 ovolicc1 24100 voliunlem2 24135 voliunlem3 24136 ioombl1lem4 24145 uniioovol 24163 uniioombllem2 24167 uniioombllem3 24169 uniioombllem6 24172 volsup2 24189 vitalilem3 24194 mbfsup 24248 mbfinf 24249 mbflimsup 24250 itg1ge0 24270 itg1mulc 24288 itg1climres 24298 mbfi1fseqlem4 24302 itg2seq 24326 itg2monolem1 24334 itg2mono 24337 itg2i1fseq2 24340 itg2gt0 24344 itg2cnlem1 24345 itg2cn 24347 limciun 24477 plycpn 24864 hmopidmchi 29912 hmopidmpji 29913 rge0scvg 31199 mclsax 32823 mblfinlem2 34964 ismtyhmeolem 35114 nacsfix 39401 fnwe2lem2 39743 gneispace 40574 climinf 41977 liminfval2 42139 |
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