grino/examples/bool.gri

(assert= false (not true))
(assert= true (not false))
(assert= false (not (not false)))

(assert= true (and true true))
(assert= false (and true false))
(assert= false (and false true))
(assert= false (and false false))

(assert= true (and true true true true true))
(assert= false (and true true true true false))

(assert= true (or true true))
(assert= true (or true true))
(assert= true (or true true))
(assert= false (or false false))

(assert= false (or false false false false false))
(assert= true (or false false true false false))