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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 6851 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6896 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2744 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3085 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
| 5 | 2, 4 | bitrdi 287 | . 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 5349 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 ∧ wa 395 = wceq 1542 ∈ wcel 2114 ∀wral 3052 ∃wrex 3062 Vcvv 3430 ran crn 5627 Fn wfn 6489 ‘cfv 6494 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-sep 5232 ax-nul 5242 ax-pr 5372 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3063 df-rab 3391 df-v 3432 df-dif 3893 df-un 3895 df-in 3897 df-ss 3907 df-nul 4275 df-if 4468 df-sn 4569 df-pr 4571 df-op 4575 df-uni 4852 df-br 5087 df-opab 5149 df-mpt 5168 df-id 5521 df-xp 5632 df-rel 5633 df-cnv 5634 df-co 5635 df-dm 5636 df-rn 5637 df-iota 6450 df-fun 6496 df-fn 6497 df-fv 6502 |
| This theorem is referenced by: ralrnmptw 7042 ralrnmpt 7044 cbvfo 7239 isoselem 7291 indexfi 9265 ordtypelem9 9436 ordtypelem10 9437 wemapwe 9613 numacn 9966 acndom 9968 rpnnen1lem3 12924 fsequb2 13933 limsuple 15435 limsupval2 15437 climsup 15627 ruclem11 16202 ruclem12 16203 prmreclem6 16887 imasaddfnlem 17487 imasvscafn 17496 cycsubgcl 19176 ghmrn 19199 ghmnsgima 19210 pgpssslw 19584 gexex 19823 dprdfcntz 19987 znf1o 21545 frlmlbs 21791 lindfrn 21815 ptcnplem 23600 kqt0lem 23715 isr0 23716 regr1lem2 23719 uzrest 23876 tmdgsum2 24075 imasf1oxmet 24354 imasf1omet 24355 bndth 24939 evth 24940 ovolficcss 25450 ovollb2lem 25469 ovolunlem1 25478 ovoliunlem1 25483 ovoliunlem2 25484 ovoliun2 25487 ovolscalem1 25494 ovolicc1 25497 voliunlem2 25532 voliunlem3 25533 ioombl1lem4 25542 uniioovol 25560 uniioombllem2 25564 uniioombllem3 25566 uniioombllem6 25569 volsup2 25586 vitalilem3 25591 mbfsup 25645 mbfinf 25646 mbflimsup 25647 itg1ge0 25667 itg1mulc 25685 itg1climres 25695 mbfi1fseqlem4 25699 itg2seq 25723 itg2monolem1 25731 itg2mono 25734 itg2i1fseq2 25737 itg2gt0 25741 itg2cnlem1 25742 itg2cn 25744 limciun 25875 plycpn 26270 hmopidmchi 32241 hmopidmpji 32242 rge0scvg 34113 mclsax 35771 mblfinlem2 37997 ismtyhmeolem 38143 nacsfix 43162 fnwe2lem2 43501 gneispace 44583 climinf 46058 liminfval2 46218 |
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