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Basic Constructs: Attribution

BASIC-ITEM      ::=   ... | ATTRIBUTION
ATTRIBUTION     ::=   attribution PROPERTY+ FUN-SYMB+
PROPERTY        ::=   SIMPLE-PROPERTY | UNIT-PROPERTY
SIMPLE-PROPERTY ::=   associative | commutative | idempotent
UNIT-PROPERTY   ::=   unit-property FUN-SYMB
An ATTRIBUTION of some properties to some function symbols FUN-SYMB+ abbreviates evident axioms asserting that each of the functions is to have each of the specified properties. Here, a FUN-SYMB that is just a FUN-NAME (without an explicit FUN-TYPE) abbreviates the list of all those function symbols declared in the local environment whose name has the same identifier as the specified FUN-NAME. The ATTRIBUTION is well-formed just when the axioms that it abbreviates are well-formed--in particular, this generally requires that each specified function symbol takes two arguments, both of the same sort.
CoFI Tentative Document: LanguageSummary --Version 0.95-- March 6, 1997.
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