diff --git a/docs/reference/predicate/isNumber.md b/docs/reference/predicate/isNumber.md
deleted file mode 100644
index 74d263314..000000000
--- a/docs/reference/predicate/isNumber.md
+++ /dev/null
@@ -1,31 +0,0 @@
-# isNumber
-
-Checks if the given value is a number.
-
-This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `number`.
-
-## Signature
-
-```typescript
-function isNumber(value: unknown): value is number;
-```
-
-### Parameters
-
-- `value` (`unknown`): The value to test if it is number.
-
-### Returns
-
-(`value is number`): True if the value is a number, otherwise false.
-
-## Examples
-
-```typescript
-const value1 = 123;
-const value2 = 'abc';
-const value3 = true;
-
-console.log(isNumber(value1)); // true
-console.log(isNumber(value2)); // false
-console.log(isNumber(value3)); // false
-```