Wolfgang Herfort, Karl H. Hofmann, Francesco G. Russo
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A short note on coproducts of Abelian pro-Lie groups
The notion of conditional coproduct of a family of abelian pro-Lie groups in the category of abelian pro-Lie groups is introduced. It is shown that the cartesian product of an arbitrary family of abelian pro-Lie groups can be characterized by the universal property of the conditional coproduct.