Small nullhomotopy neighborhoods form a basis: local context

Project map · Chapter map · Full theorem DAG · Open textbook statement

This local map shows one dependency hop in either direction. The highlighted item is the current focus. What the colours mean

fully proved3Proved, and every prerequisite is fully proved too.

graph LR n0["Semilocally simply-connected spaces"]:::fully_proved n1("Small nullhomotopy neighborhoods form a basis"):::fully_proved n2("The sets U[γ] form the universal-cover basis"):::fully_proved n1 -.-> n2 n0 --> n1 click n0 "../../../../../roadmap/fundamental-group/covering-spaces/universal-cover/index.html#semilocally-simply-connected" "Semilocally simply-connected spaces — 1 item · 1 fully proved" class n1 focus click n1 "../../../../../roadmap/fundamental-group/covering-spaces/universal-cover/index.html#nullhomotopic-open-basis" "Small nullhomotopy neighborhoods form a basis — 1 item · 1 fully proved" click n2 "../../../../../roadmap/fundamental-group/covering-spaces/universal-cover/index.html#universal-cover-basis" "The sets U[γ] form the universal-cover basis — 1 item · 1 fully proved"