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setaceous
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SETI
setiferous
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set theory
set the·o·ry


noun 
Definition:
 
1. mathematics of sets: the branch of mathematics that deals with the properties and relationships of sets
2. system of set axioms: the system of axioms for sets
Encarta® World English Dictionary [North American Edition] © & (P)2009 Microsoft Corporation. All rights reserved. Developed for Microsoft by Bloomsbury Publishing Plc.
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