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  • ACL2-programming-language

Values

A formalization of ACL2 values.

The ACL2 programming language has an evaluation semantics, which includes a notion of values. Here we formalize this notion.

Subtopics

Value
Fixtype of values.
Symbol-value
Fixtype of symbol values.
Lower-symbol
Lower a symbol value to an ACL2 symbol.
Lift-symbol-list
Lift lift-symbol to lists.
Symbol-value-option
Fixtype of optional symbol values.
Value-option
Fixtype of optional values.
Lift-value
Lift an ACL2 good value to a meta-level value.
Lift-symbol
Lift an ACL2 symbol to a symbol value.
Value-rational->get
Return the ACL2 rational from its meta representation.
Value-integer->get
Return the ACL2 integer from its meta representation.
Value-case-rational
Check if a value is a rational.
Value-case-integer
Check if a value is an integer.
Value-symbol-list
Lift value-symbol to lists.
Lower-value
Lower a meta-level value to an ACL2 good value.
Value-list-of
Make a meta-level list value from a list of meta-level values.
Value-list
Fixtype of lists of values.
Symbol-value-list
Fixtype of lists of symbol values.
Symbol-value-set
Fixtype of finite sets of symbol values.
Value-t
The symbol value for t.
Value-nil
The symbol value for nil.