Re: Laws Of Form Discussion • Minimal Negation Operators
The brief description of minimal negation operators given in the previous post is enough to convey the rule of their construction. For future reference, a slightly more formal definition is given below.
Initial Definition
The minimal negation operator is a multigrade operator
where each
is a
-ary boolean function defined by the rule that
if and only if exactly one of the arguments
is
In contexts where the initial letter is understood, the minimal negation operators can be indicated by argument lists in parentheses. In the discussion that follows a distinctive typeface will be used for logical expressions based on minimal negation operators, for example,
The first four members of this family of operators are shown below. The third and fourth columns give paraphrases in two other notations, where tildes and primes, respectively, indicate logical negation.
Resources
- Minimal Negation Operator • InterSciWiki • MyWikiBiz • Wikiversity