agda-spa/lean/Spa.lean at 4c337afa9cbecbbee643fc85ec65d5df28d3d70f - agda-spa - Daniel's Tiny Cup Of Tea

DanilaFe/agda-spa

Files

Danila Fedorin 4c337afa9c Lean migration: Phase 3 (Unit, Prod, AboveBelow lattices)

- Spa.Lattice.Unit: PUnit fixed height 0 (lattice lifted from mathlib)
- Spa.Lattice.Prod: chain unzip + FixedHeight (h1+h2) on products
  (componentwise lattice lifted from mathlib's Prod.instLattice)
- Spa.Lattice.AboveBelow: flat lattice via Lattice.mk' (mirrors the Agda
  semilattices+absorption construction), boundedness via rank into Nat,
  Plain x ↦ plainFixedHeight x, height 2

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

2026-06-09 18:48:02 -07:00

7 lines

142 B

Lean4

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 import Spa.Lattice
 import Spa.Fixedpoint
 import Spa.Isomorphism
 import Spa.Lattice.Unit
 import Spa.Lattice.Prod
 import Spa.Lattice.AboveBelow