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For pseudoquasimetric spaces the open r {\displaystyle r} -balls form a basis of open sets. A very basic example of a pseudoquasimetric space is the...

enriched over 2. William Lawvere's generalized metric spaces, also known as pseudoquasimetric spaces, are categories enriched over the nonnegative extended...

theory between 1988 and 1995. Given a metric space (X, d), or more generally, an extended pseudoquasimetric (which will be abbreviated ∞pq-metric here)...