Update

UltiSnips/lean.snippets

@@ -6,6 +6,14 @@ snippet <> "Add sharp brackets"
 ⟨$1⟩$0
 endsnippet
 
+snippet | "dvd"
+∣
+endsnippet
+
+snippet () "Braces"
+($1)$0
+endsnippet
+
 # Mengen
 snippet N "Natural number"
 ℕ
@@ -15,6 +23,9 @@ snippet Z "Whole numbers"
 ℤ
 endsnippet
 
+snippet R "Real"
+ℝ
+endsnippet
 
 # Quantoren
 snippet E "Exists"

lua/vanilla.lua

@@ -73,7 +73,7 @@ local function update_nix_interpreter()
 		})
 		return
 	end
-	local cmd = { "nix-instantiate", "--eval", filename }
+	local cmd = { "nix-instantiate", "--eval", "--strict", filename }
 	local output = vim.fn.systemlist(cmd)
 	if vim.v.shell_error ~= 0 then
 		table.insert(output, 1, "Error running nix-instantiate:")
@@ -85,8 +85,8 @@ end
 -- @param
 -- @short Closes the window and buffer of the interpreter
 local function close_nix_interpreter()
-	vim.api.nvim_buf_delete(nix_interpreter_buffer)
-	vim.api.nvim_win_close(nix_interpreter_window)
+	vim.api.nvim_buf_delete(nix_interpreter_buffer, { unload = true })
+	vim.api.nvim_win_close(nix_interpreter_window, true)
 end
 
 vim.api.nvim_create_autocmd({ "BufEnter" }, {