mk_exists1 : term * term -> term

SYNOPSIS
Term constructor for unique existence.

DESCRIBE
If v is a variable and t is a term of type bool, then mk_exists1 (v,t) returns the term ?!v. t.

FAILURE
Fails if v is not a variable or if t is not of type bool.

SEEALSO  dest_exists1,   is_exists1

HOL  Kananaskis 0