improve checks

Author: lord-ruby

utilities.lua

@@ -556,8 +556,8 @@ function Cryptid.get_next_tag()
 end
 
 function Cryptid.is_number(x)
-	return type(x) == "number" or (type(x) == "table" and x.tetrate) or (is_big and is_big(x))
+	return type(x) == "number" or (type(x) == "table" and is_number(x)) or (is_big and is_big(x))
 end
 function Cryptid.is_big(x)
-	return (type(x) == "table" and x.tetrate) or (is_big and is_big(x))
+	return (type(x) == "table" and is_number(x)) or (is_big and is_big(x))
 end