disjunctionboolSyntax.disjunction : termConstant denoting logical disjunction.
The ML variable boolSyntax.disjunction is bound to the
term bool$\/.
boolSyntax.equality, boolSyntax.implication,
boolSyntax.select, boolSyntax.T, boolSyntax.F, boolSyntax.universal,
boolSyntax.existential,
boolSyntax.exists1,
boolSyntax.conjunction,
boolSyntax.negation,
boolSyntax.conditional,
boolSyntax.bool_case,
boolSyntax.let_tm, boolSyntax.arb