| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > rexeqbidv | Structured version Visualization version GIF version | ||
| Description: Equality deduction for restricted universal quantifier. (Contributed by NM, 6-Nov-2007.) Remove usage of ax-10 2179, ax-11 2196, and ax-12 2215 and reduce distinct variable conditions. (Revised by Steven Nguyen, 30-Apr-2023.) |
| Ref | Expression |
|---|---|
| raleqbidv.1 | ⊢ (𝜑 → 𝐴 = 𝐵) |
| raleqbidv.2 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| rexeqbidv | ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 ↔ ∃𝑥 ∈ 𝐵 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | raleqbidv.1 | . . . 4 ⊢ (𝜑 → 𝐴 = 𝐵) | |
| 2 | 1 | eleq2d 2849 | . . 3 ⊢ (𝜑 → (𝑥 ∈ 𝐴 ↔ 𝑥 ∈ 𝐵)) |
| 3 | raleqbidv.2 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 4 | 2, 3 | anbi12d 644 | . 2 ⊢ (𝜑 → ((𝑥 ∈ 𝐴 ∧ 𝜓) ↔ (𝑥 ∈ 𝐵 ∧ 𝜒))) |
| 5 | 4 | rexbidv2 3185 | 1 ⊢ (𝜑 → (∃𝑥 ∈ 𝐴 𝜓 ↔ ∃𝑥 ∈ 𝐵 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 = wceq 1569 ∈ wcel 2146 ∃wrex 3089 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-ext 2735 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-cleq 2755 df-clel 2838 df-rex 3090 |
| This theorem is used by: frd 5611 supeq123d 9452 fpwwe2lem12 10737 vdwpc 17170 ramval 17198 mreexexlemd 17830 iscat 17858 iscatd 17859 catidex 17860 idressidex 18873 gsumval2a 18886 ismnddef 18937 mndpropd 18963 isgrp 19162 isgrpd2e 19178 cayleyth 19641 psgnfval 19726 iscyg 20105 ltbval 22364 opsrval 22367 scmatval 22831 pmatcollpw3fi1lem2 23117 pmatcollpw3fi1 23118 neiptopnei 23462 is1stc 23771 2ndc1stc 23781 2ndcsep 23790 islly 23799 isnlly 23800 ucnval 24607 imasdsf1olem 24704 met2ndc 24854 evthicc 25792 elmade2 28256 addsval 28360 mulsval 28507 istrkgb 28929 istrkge 28931 istrkgld 28933 legval 29059 ishpg 29249 plngval 29267 lnssplng 29282 iscgra 29328 isinag 29369 isleag 29378 cgrabasimass 29390 nbgrval 29929 nb3grprlem2 29974 1loopgrvd0 30097 erclwwlkeq 30621 eucrctshift 30856 isplig 31090 nmoofval 31376 erlval 33872 idomsubr 33924 elrsp 33980 1arithidom 34122 dfufd2lem 34134 fldextrspunlsp 34359 extdgfialglem1 34377 constrsuc 34423 reprsuc 35297 istrkg2d 35348 iscvm 36145 cvmlift2lem13 36201 br8 36648 br6 36649 br4 36650 brsegle 37000 hilbert1.1 37046 pibp21 38478 poimirlem26 38704 poimirlem28 38706 poimirlem29 38707 cover2g 38790 isexid 38921 isrngo 38971 isrngod 38972 isgrpda 39029 lshpset 40175 cvrfval 40465 isatl 40496 ishlat1 40549 llnset 40702 lplnset 40726 lvolset 40769 lineset 40935 lcfl7N 42698 lcfrlem8 42746 lcfrlem9 42747 lcf1o 42748 hvmapffval 42955 hvmapfval 42956 hvmapval 42957 prjspval 43771 mzpcompact2lem 43902 eldioph 43909 aomclem8 44203 tfsconcatun 44479 clsk1independent 45186 ovnval 47690 sprval 48700 nnsum3primes4 49025 nnsum3primesprm 49027 nnsum3primesgbe 49029 wtgoldbnnsum4prm 49039 bgoldbnnsum3prm 49041 clnbgrval 49059 gpg3kgrtriex 49326 grlimedgnedg 49368 zlidlring 49470 uzlidlring 49471 lcoop 49662 ldepsnlinc 49759 nnpw2p 49837 lines 49983 iscnrm3r 50201 |
| Copyright terms: Public domain | W3C validator |