41. Then-and later in model theory-a concept as unary extension and intension of linguistics and classical conceptual logic. 42. Another way is to work in a one-sorted theory with a unary relation used to distinguish sets and urelements. 43. It also contains some undecidable problems, such as the unary version of every undecidable problem, including the halting problem. 44. A binary ( or higher arity ) residuated map is usually " not " residuated as a unary map. 45. :: : : : : The article also states factorials, absolute value, power operations symbols are unary operators. 46. In order to accomplish that task, the unary dereference operator, denoted by an asterisk ( * ), is used. 47. This property, and 3-partition in general, is useful in many reductions where numbers are naturally represented in unary . 48. Edward Nelson's internal set theory enriches the Zermelo Fraenkel set theory syntactically by introducing a unary predicate " standard ". 49. The simplest numeral system is the unary numeral system, in which every natural number is represented by a corresponding number of symbols. 50. Another major design challenge will be developing a genderless unary connector for the catoms in order to keep reconfiguration time at a minimum.
