Groups lectures (#25)

2025-10-22 11:38:38 +00:00 · 2019-02-19 08:24:38 +00:00
parent d2192c72d9
commit 674aae49cd
8 changed files with 593 additions and 71 deletions
--- a/DecidableSet.agda
+++ b/DecidableSet.agda
@@ -0,0 +1,10 @@
+{-# OPTIONS --safe --warning=error #-}
+
+open import LogicalFormulae
+open import Agda.Primitive using (Level; lzero; lsuc; _⊔_)
+
+module DecidableSet where
+
+  record DecidableSet {a : _} (A : Set a) : Set a where
+    field
+      eq : (a b : A) → ((a ≡ b) || ((a ≡ b) → False))