An earlier attempt in the post-war era to create a theory of sets where set membership is a matter of degree was made by Abraham Kaplan and Hermann Schott in 1951.
22.
The first auction in the world Aalsmeer Flower Auction sets membership open to international members; companies located in countries outside the EU ( companies from EU member states were already a member ).
23.
Data links are frequently used to read a datum and evaluate its degree of membership in a concept that is quantified in a fuzzy argument ( an argument that quantifies fuzzy set membership ).
24.
The courts have repeatedly held that the Boy Scouts of America, and all private organizations, have a right to set membership standards in accordance with the First Amendment protected concept of freedom of association.
25.
Hypothesis theory has fallen out of favor ( along with many other rule-based models ) in the wake of exemplar theories, both of which employ a notion of graded similarity rather than crisp set membership.
26.
Note the subset relation \ subseteq is not used in the formal definition as subset is not a primitive relation in formal set theory; rather, subset is defined in terms of set membership, \ in.
27.
In 1922, Fraenkel and Thoralf Skolem independently proposed operationalizing a " definite " property as one that could be formulated as a first order theory whose atomic formulas were limited to set membership and identity.
28.
In a pair of unanimous rulings, the court held that the Scouts are a private membership organization, not covered by the state's 40-year-old civil rights law, and so are free to set membership policies as they see fit.
29.
The lunate epsilon ( ? ) is not to be confused with the set membership symbol ( " ); nor should the Latin uppercase epsilon ( ? ) be confused with the Greek uppercase sigma ( ? ).
30.
There are a few different symbols in use for a cyclic relation . uses concatenation : . and use ordered triples and the set membership symbol : . uses concatenation and set membership :, understanding as a cyclically ordered triple.
