DISJ2 : (term -> thm -> thm)

SYNOPSIS
Introduces a left disjunct into the conclusion of a theorem.

DESCRIBE
      A |- t2
   ---------------  DISJ2 "t1"
    A |- t1 \/ t2

FAILURE
Fails if the term argument is not boolean.

EXAMPLE
#DISJ2 "F" TRUTH;;
|- F \/ T

SEEALSO  DISJ1,   DISJ1_TAC,   DISJ2_TAC,   DISJ_CASES

HOL  Kananaskis 0