Abstract
It is proved by an order theoretical and purely algebraic method that any order bounded orthosymmetric bilinear operator b: E×E → F where E and F are Archimedean vector lattices is symmetric. This leads to a new and short proof of the commutativity of Archimedean almost f-algebras.
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Chil, E. Order bounded orthosymmetric bilinear operator. Czech Math J 61, 873–880 (2011). https://doi.org/10.1007/s10587-011-0052-8
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DOI: https://doi.org/10.1007/s10587-011-0052-8