A categorical study on the generalized type semigroup

In this short note, we show that the generalized type semigroup $\CW(X, Γ)$ introduced by the author in \cite{M3} belongs to the category \textnormal{W}. In particular, we demonstrate that $\CW(X, Γ)$ satisfies axioms (W1)-(W4) and (W6). When $X$ is zero-dimensional, we also establish (W5) for the semigroup. This supports the analogy between the generalized type semigroup and pre-completed Cuntz semigroup $W(\cdot)$ for $C^*$-algebras.

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