Appendix:Lojban/simxu

Root

 * 1) mutual; x1 (set) has members who mutually/reciprocally/symmetrically x2 (event [x1 should be reflexive in 1+ sumti]).

Usage notes

 * If is a set and  an event (a selbri abstracted with : call that selbri R (considering it as a binary relation)), then this gismu's definition is satisfied when there are at least two elements y and z of  such that R(y, z) and R(z, y).