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The present article describes a method for checking the validity of implications or equivalences in the free orthomodular lattice on two generators and in the F(a, b, c1,..., cn), which is the free orthomodular lattice generated by the elements a, 6, ci,... Cn, where the elements ci, i = 1,..., n are central in it. The structure of the previous lattices is described in [3] and [1]. The method presented...
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