Associativity of $σ$-sets for non-antielement $σ$-set groups
We study and extend the conditions for asociativity on fusion over antielement free $σ$-sets to introduce a group to solve $σ$-set equations. $σ$-sets as a theory of sets and antisets is sumarized and used as a framework to define the main elements of this work. A theorem on Local Asociativity, conmutative groups and solution of one variable fusion equation is presented.
math.LO↗