{"abstract":"We consider subsets G of a generalized effect algebra E with 0\u2208G and such that every interval [0, q]G = [0, q]E \u2229 G of G (q \u2208 G , q \u2260 0) is a sub-effect algebra of the effect algebra [0, q]E. We give a condition on E and G under which every such G is a sub-generalized effect algebra of E.","author":[{"family":"Rie\u010danov\u00e1"},{"family":"Zajac"}],"id":"unknown","issued":{"date-parts":[[2013]]},"language":"en","publisher":"CTU Central Library","title":"Intervals in Generalized Effect Algebras and their Sub-generalized Effect Algebras","type":"article-journal","volume":"53"}