Sheets are cosets of the induced subgroup: 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

in mathlib1Upstreamed into Mathlib.fully proved2Proved, and every prerequisite is fully proved too.

graph LR n0["The fundamental group acts on a covering fiber"]:::mathlib n1("The induced subgroup consists of loops with closed lifts"):::fully_proved n2["Sheets are cosets of the induced subgroup"]:::fully_proved n1 -.-> n2 n0 --> n1 n0 -.-> n2 click n0 "../../../../roadmap/fundamental-group/covering-spaces/index.html#monodromy-action" "The fundamental group acts on a covering fiber — 1 item · 1 in mathlib" click n1 "../../../../roadmap/fundamental-group/covering-spaces/index.html#closed-lift-image" "The induced subgroup consists of loops with closed lifts — 1 item · 1 fully proved" class n2 focus click n2 "../../../../roadmap/fundamental-group/covering-spaces/index.html#sheet-index" "Sheets are cosets of the induced subgroup — 1 item · 1 fully proved"