New approach to characterization of orthomodular lattices by means of special types of bivariable functions $G$ is suggested. Under special marginal conditions a bivariable function $G$ can operate as, for example, infimum measure, supremum measure or symmetric difference measure for two elements of an orthomodular lattice.
orthomodular lattice, conditional state, bivariable functions, modeling infimum measure, supremum measure, simultaneous measurements, finite atomistic quantum logic, s-map, d-map
03G10, 03G12, 03G25, 03H05