The Bloods, also known as (OBF) Original Blood Family, are a primarily, though not exclusively, African-American street gang founded in Los Angeles, California. The gang is widely known for its rivalry with the Crips.
What to look for. Boolean operators form the basis of mathematical sets and database logic. 1  They connect your seach words together to either narrow or broaden your set of results.2  The three basic boolean operators are: AND, OR, and NOT. For example, Google automatically puts an AND in between your search terms. 2  Though all your search terms are included in the results, they may not be connected together in the way you want. 3  For example, this search: college students test anxiety is translated to: college AND students AND test AND anxiety.
, where. A Boolean function is linear if one of the following holds for the function's truth table 1  : In every row in which the truth value of the function is 'T', there are an odd number of 'T's assigned to the arguments and in every row in which the function is 'F' there is an even number of 'T's assigned to arguments.