MPE Home Metamath Proof Explorer < Previous   Next >
Nearby theorems
Mirrors  >  Home  >  MPE Home  >  Th. List  >  rmobii Structured version   Visualization version   GIF version

Theorem rmobii 3361
Description: Formula-building rule for restricted existential quantifier (inference form). (Contributed by NM, 16-Jun-2017.)
Hypothesis
Ref Expression
rmobii.1 (𝜑𝜓)
Assertion
Ref Expression
rmobii (∃*𝑥𝐴 𝜑 ↔ ∃*𝑥𝐴 𝜓)

Proof of Theorem rmobii
StepHypRef Expression
1 rmobii.1 . . 3 (𝜑𝜓)
21a1i 11 . 2 (𝑥𝐴 → (𝜑𝜓))
32rmobiia 3359 1 (∃*𝑥𝐴 𝜑 ↔ ∃*𝑥𝐴 𝜓)
Colors of variables: wff setvar class
Syntax hints:  wb 205  wcel 2106  ∃*wrmo 3352
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1797  ax-4 1811
This theorem depends on definitions:  df-bi 206  df-an 397  df-ex 1782  df-mo 2538  df-rmo 3353
This theorem is referenced by:  2reu5a  3702  reuxfrd  3706  brdom7disj  10466  2sqreulem4  26800  nomaxmo  27044  reuxfrdf  31366  cvmlift2lem13  33849  ineccnvmo  36808  dfeldisj5  37173  lubeldm2  46960  glbeldm2  46961
  Copyright terms: Public domain W3C validator