is_imp_only : term -> bool

SYNOPSIS
Tests a term to see if it is an implication.

DESCRIBE
If M has the form t1 ==> t2 then is_imp_only M returns true. If the term is not an implication, the result is false.

FAILURE
Never fails.

SEEALSO  is_imp,   mk_imp,   dest_imp,   dest_imp_only,   list_mk_imp,   strip_imp

HOL  Kananaskis 0