Signature on a finite relation: 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.

ready to state1Nothing it needs is blocked, so the statement can be written in Lean.planned4Described in the blueprint only.

graph LR n0("Hardt triviality"):::can_state n1["Test categories"]:::planned n2("Rational sphere calculation"):::planned n3("Signature on a finite relation"):::planned n4("Fixed sphere lattice"):::planned n0 -.-> n3 n1 --> n3 n1 --> n4 n1 --> n2 n3 -.-> n4 n2 -.-> n3 n2 -.-> n4 click n0 "../../../roadmap/background/index.html#hardt-triviality" "Hardt triviality — 1 item · 1 ready to state" click n1 "../../../roadmap/sheaf-categories/index.html#test-categories" "Test categories — 1 item · 1 planned" click n2 "../../../roadmap/sphere-lattice/index.html#sphere-rank" "Rational sphere calculation — 1 item · 1 planned" class n3 focus click n3 "../../../roadmap/sphere-lattice/index.html#generic-signature" "Signature on a finite relation — 1 item · 1 planned" click n4 "../../../roadmap/sphere-lattice/index.html#sphere-lattice" "Fixed sphere lattice — 1 item · 1 planned"