https://github.com/math-comp/analysis/blob/1edbf7c822ab1a151c3f9574399f57d735d3c9f4/theories/topology_theory/topology_structure.v#L794 should be `closure_isolated_limit_point`
analysis/theories/topology_theory/topology_structure.v
Line 794 in 1edbf7c
should be
closure_isolated_limit_point