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@@ -179,6 +179,30 @@ To show the current stack without modifying it: 45 ``` +## Boolean-to-Number Coercion + +Boolean values are automatically coerced to numbers when used in arithmetic operations: +- `true` is treated as `1` +- `false` is treated as `0` + +This enables mixed boolean-numeric expressions: + +```bash +gt 5 3 == 1 + # 5 == 3 is false (0), 0 + 1 = 1 +# → 1 + +gt 0 false + # false is 0, 0 + 0 = 0 +# → 0 + +gt true 2 * # true is 1, 1 * 2 = 2 +# → 2 + +gt 9 3 > 4 5 < + # 9 > 3 is true (1), 4 < 5 is true (1), 1 + 1 = 2 +# → 2 +``` + +Note: The boolean result is shown as `true`/`false` when printed, but when used as an operand it behaves as the corresponding numeric value. + ## Hyper Operators Hyper operators work on all values on the stack simultaneously: |