Allow negative numbers in expressions

2026-08-09 17:51:58 -05:00
parent a19f9fa148
commit c0542d0811
3 changed files with 23 additions and 8 deletions
--- a/lean/Spa/Language/Base.lean
+++ b/lean/Spa/Language/Base.lean
@@ -22,7 +22,7 @@ inductive Expr where
  | add (e₁ e₂ : Expr)
  | sub (e₁ e₂ : Expr)
  | var (x : String)
-  | num (n : ℕ)
+  | num (z : ℤ)
  deriving DecidableEq

 /-- A statement that cannot alter control flow (and thus, can be part of a basic block).