File: bool.grm

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FIRST_CHARS  `a b`.
CHARS `a b c d`.

term --> [CONJ] {mk_conj(term,term)}
       | [DISJ] {mk_disj(term,term)}
       | [NEG] {mk_neg(term)}
       | [IMP] {mk_imp(term,term)}
       | {mk_var(TOKEN,":bool")}.

eof --> [EOF].

conj --> [CONJ] {mk_conj(term,term)} eof.

disj --> [DISJ] {mk_disj(term,term)} eof.

neg --> [NEG] {mk_neg(term)} eof.

imp --> [IMP] {mk_imp(term,term)} eof.

MAIN_LOOP --> conj
            | disj
            | neg
            | imp.