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2.3.2 Logical Connectives
These formulae determine the usual logical connectives on the
sub-formulae. Conjunction and disjunction apply to lists of two or
more formulae; they both have weaker precedence than negation. When
mixed, they have to be explicitly grouped, using parentheses
`(...)'.
Both implication (which may be written in two different ways) and
equivalence have weaker precedence than conjunction and disjunction.
When the `forward' version of implication is iterated, it is
implicitly grouped to the right; the `backward' version is grouped to
the left. When these constructs are mixed, they have to be explicitly
grouped.
CoFI
Document: CASL/Summary --Version 0.99-- 21 April 1998.
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