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Theorem ala1 1660
Description: Add an antecedent in a universally quantified formula. (Contributed by BJ, 6-Oct-2018.)
Assertion
Ref Expression
ala1

Proof of Theorem ala1
StepHypRef Expression
1 ax-1 6 . 2
21alimi 1633 1
Colors of variables: wff setvar class
Syntax hints:  ->wi 4  A.wal 1393
This theorem is referenced by:  19.38  1662  ax12dgen  1830  stdpc4  2094  alral  2822  hbimtg  29239  bj-axdd2  34180  bj-equsal1t  34395
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-gen 1618  ax-4 1631
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