a binary relation is one which is defined for B subset X x X (x,y) in B <=> xBy

Examples are >, =>, +, ... many others.

- X=all people, B= kin to.
- X=all people, B=cousin to.
- X=R, B= "=>"
- X=R^2, B= "=>" ("=>" => x1=>y1 and x2=>y2)
- X=R^2, B= Has greater magnitude

source

jl@crush.caltech.edu index

measurement_theory

mixture_space

savage

order

dense

axiom