ILE Home Intuitionistic Logic Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  ILE Home  >  Th. List  >  nfralxy Unicode version

Theorem nfralxy 2571
Description: Old name for nfralw 2570. (Contributed by Jim Kingdon, 30-May-2018.) (New usage is discouraged.)
Hypotheses
Ref Expression
nfralxy.1  |-  F/_ x A
nfralxy.2  |-  F/ x ph
Assertion
Ref Expression
nfralxy  |-  F/ x A. y  e.  A  ph
Distinct variable group:    x, y
Allowed substitution hints:    ph( x, y)    A( x, y)

Proof of Theorem nfralxy
StepHypRef Expression
1 nftru 1515 . . 3  |-  F/ y T.
2 nfralxy.1 . . . 4  |-  F/_ x A
32a1i 9 . . 3  |-  ( T. 
->  F/_ x A )
4 nfralxy.2 . . . 4  |-  F/ x ph
54a1i 9 . . 3  |-  ( T. 
->  F/ x ph )
61, 3, 5nfraldxy 2566 . 2  |-  ( T. 
->  F/ x A. y  e.  A  ph )
76mptru 1407 1  |-  F/ x A. y  e.  A  ph
Colors of variables: wff set class
Syntax hints:   T. wtru 1399   F/wnf 1509   F/_wnfc 2362   A.wral 2511
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-4 1559  ax-17 1575  ax-ial 1583  ax-i5r 1584  ax-ext 2213
This theorem depends on definitions:  df-bi 117  df-tru 1401  df-nf 1510  df-cleq 2224  df-clel 2227  df-nfc 2364  df-ral 2516
This theorem is referenced by:  nfra2xy  2575  rspc2  2922  sbcralt  3109  sbcralg  3111  raaanlem  3601  nfint  3943  nfiinxy  4002  nfpo  4404  nfso  4405  nfse  4444  nffrfor  4451  nfwe  4458  ralxpf  4882  funimaexglem  5420  fun11iun  5613  dff13f  5921  nfiso  5957  mpoeq123  6090  nfofr  6251  fmpox  6374  nfrecs  6516  xpf1o  7073  ac6sfi  7130  ismkvnex  7414  lble  9186  fzrevral  10402  nfsum1  11996  nfsum  11997  fsum2dlemstep  12075  fisumcom2  12079  nfcprod1  12195  nfcprod  12196  bezoutlemmain  12649  cnmpt21  15102  setindis  16683  bdsetindis  16685  strcollnfALT  16702  isomninnlem  16762  iswomninnlem  16782  ismkvnnlem  16785
  Copyright terms: Public domain W3C validator