41. For all finite sets this gives us the usual definition of " the same size ". 42. Any ultrafilter containing a finite set is trivial. 43. No general formula that counts the number of transitive relations on a finite set is known. 44. Every finite set of continuous functions is equicontinuous. 45. Boolean algebra is isomorphic to the Boolean algebra of the power set of a finite set . 46. The sound system of a language is composed of a finite set of simple phonological items. 47. Thus any finite set of primes can be extended to a larger finite set of primes. 48. Combinatorics in higher mathematics is the study of permutations and combinations of elements in finite sets . 49. Let N and X be finite sets . 50. In the case of chess, " they're taking something that has a very finite set of possibilities.
