0 receipts inline · 9 lines · pinned (not yet) — shasum -a 256 of this file, cut to 16, as pins has it · lake env lean book.lean prints nothing when every receipt passes
import Room open Room set_option autoImplicit false #guard (words 0).length == 1 #guard (words 1).length == 2 #guard (words 2).length == 4 #guard (words 3).length == 8 #guard (words 3).length == roomCap 3
graph LR