unary predicate - definição. O que é unary predicate. Significado, conceito
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O que (quem) é unary predicate - definição

PREDICATE THAT TAKES ONLY INDIVIDUAL(S) CONSTANTS OR VARIABLES AS ARGUMENT(S)
One-place predicate; Two-place predicate

Unary function         
FUNCTION THAT TAKES ONE ARGUMENT. IN COMPUTER SCIENCE, A UNARY OPERATOR IS A SUBSET OF UNARY FUNCTION
Unary functions
A unary function is a function that takes one argument. A unary operator belongs to a subset of unary functions, in that its range coincides with its domain.
unary         
WIKIMEDIA DISAMBIGUATION PAGE
Unary (disambiguation); 1-ary
1. <programming> (or "monadic") A description of a function or operator which takes one argument, e.g. the unary minus operator which negates its argument. The term is part of the same sequence as nullary and binary. 2. <data, humour> Base one. A number base with only one digit, namely zero, and which can therefore only be used to express the number zero. Attempting to add one to zero results in an infinite sequence of carries. Numbers in unary notation can be represented particularly efficiently however since each digit requires no storage. (2001-02-25)
Predicate (mathematical logic)         
CONCEPT OF MATHEMATICAL LOGIC
Logical predicate; Mathematical statement; Predicate (mathematics); Predicate (computer programming); Predication (computer programming); Predicate (logic); Boolean predicates
In logic, a predicate is a symbol which represents a property or a relation. For instance, in the first order formula P(a), the symbol P is a predicate which applies to the individual constant a.

Wikipédia

First-order predicate

In mathematical logic, a first-order predicate is a predicate that takes only individual(s) constants or variables as argument(s). Compare second-order predicate and higher-order predicate.

This is not to be confused with a one-place predicate or monad, which is a predicate that takes only one argument. For example, the expression "is a planet" is a one-place predicate, while the expression "is father of" is a two-place predicate.