| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| 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 6900 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑦 ∈ 𝐴) → (𝐹‘𝑦) ∈ V) | |
| 2 | fvelrnb 6945 | . . 3 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥)) | |
| 3 | eqcom 2768 | . . . 4 ⊢ ((𝐹‘𝑦) = 𝑥 ↔ 𝑥 = (𝐹‘𝑦)) | |
| 4 | 3 | rexbii 3110 | . . 3 ⊢ (∃𝑦 ∈ 𝐴 (𝐹‘𝑦) = 𝑥 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦)) |
| 5 | 2, 4 | bitrdi 290 | . 2 ⊢ (𝐹 Fn 𝐴 → (𝑥 ∈ ran 𝐹 ↔ ∃𝑦 ∈ 𝐴 𝑥 = (𝐹‘𝑦))) |
| 6 | rexrn.1 | . . 3 ⊢ (𝑥 = (𝐹‘𝑦) → (𝜑 ↔ 𝜓)) | |
| 7 | 6 | adantl 487 | . 2 ⊢ ((𝐹 Fn 𝐴 ∧ 𝑥 = (𝐹‘𝑦)) → (𝜑 ↔ 𝜓)) |
| 8 | 1, 5, 7 | ralxfr2d 5372 | 1 ⊢ (𝐹 Fn 𝐴 → (∀𝑥 ∈ ran 𝐹𝜑 ↔ ∀𝑦 ∈ 𝐴 𝜓)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∧ wa 401 = wceq 1570 ∈ wcel 2145 ∀wral 3077 ∃wrex 3087 Vcvv 3451 ran crn 5652 Fn wfn 6533 ‘cfv 6538 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-8 2147 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 ax-sep 5249 ax-nul 5260 ax-pr 5391 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1573 df-fal 1583 df-ex 1813 df-nf 1817 df-sb 2100 df-mo 2565 df-eu 2595 df-clab 2740 df-cleq 2753 df-clel 2836 df-nfc 2910 df-ne 2957 df-ral 3078 df-rex 3088 df-rab 3414 df-v 3453 df-dif 3902 df-un 3904 df-in 3906 df-ss 3916 df-nul 4280 df-if 4483 df-sn 4585 df-pr 4587 df-op 4591 df-uni 4868 df-br 5104 df-opab 5168 df-mpt 5187 df-id 5546 df-xp 5657 df-rel 5658 df-cnv 5659 df-co 5660 df-dm 5661 df-rn 5662 df-iota 6494 df-fun 6540 df-fn 6541 df-fv 6546 |
| This theorem is used by: ralrnmptw 7094 ralrnmpt 7096 cbvfo 7297 isoselem 7349 fnwe2lem3 8147 indexfi 9349 ordtypelem9 9520 ordtypelem10 9521 wemapwe 9698 numacn 10128 acndom 10130 rpnnen1lem3 13107 fsequb2 14119 limsuple 15645 limsupval2 15647 climsup 15837 ruclem11 16408 ruclem12 16409 prmreclem6 17099 imasaddfnlem 17700 imasvscafn 17709 cycsubgcl 19421 ghmrn 19443 ghmnsgima 19454 pgpssslw 19828 gexex 20067 dprdfcntz 20231 znf1o 21857 frlmlbs 22103 lindfrn 22127 ptcnplem 23940 kqt0lem 24055 isr0 24056 regr1lem2 24059 uzrest 24216 tmdgsum2 24415 imasf1oxmet 24694 imasf1omet 24695 bndth 25279 evth 25280 ovolficcss 25790 ovollb2lem 25809 ovolunlem1 25818 ovoliunlem1 25823 ovoliunlem2 25824 ovoliun2 25827 ovolscalem1 25834 ovolicc1 25837 voliunlem2 25872 voliunlem3 25873 ioombl1lem4 25882 uniioovol 25900 uniioombllem2 25904 uniioombllem3 25906 uniioombllem6 25909 volsup2 25926 vitalilem3 25931 mbfsup 25985 mbfinf 25986 mbflimsup 25987 itg1ge0 26007 itg1mulc 26025 itg1climres 26035 mbfi1fseqlem4 26039 itg2seq 26063 itg2monolem1 26071 itg2mono 26074 itg2i1fseq2 26077 itg2gt0 26081 itg2cnlem1 26082 itg2cn 26084 limciun 26214 plycpn 26610 hmopidmchi 32753 hmopidmpji 32754 rge0scvg 34581 mclsax 36334 mblfinlem2 38576 ismtyhmeolem 38738 nacsfix 43722 gneispace 45133 climinf 46617 liminfval2 46777 |
| Copyright terms: Public domain | W3C validator |