# AND ### Description Checks whether first argument and the second argument are *true*. ### Boolean AND Boolean ```java Scalar AND Scalar : Scalar Scalar AND GroupedScalar : GroupedScalar GroupedScalar AND Scalar : GroupedScalar GroupedScalar AND GroupedScalar : GroupedScalar ``` Comparing if a Scalar\ and Scalar\ are both true. Returns a Scalar\ with true when both terms result in true otherwise false. If one argument is a Scalar, and the other one a GroupedScalar, then the operation is performed by taking the Scalar value and the value of each group value, which results another GroupedScalar (it has same group size, as the one from the input argument). If both arguments are GroupedScalar, then the operation is performed by taking values with same group key, which results in another Grouped Scalar (the group size is equal or smaller than the ones of the input arguments). ### Examples Check if the PowerConsumption is greater 0 AND the PowerProduction is > 0. Only returns true if both are valid. ```java $PowerConsumption > 0 AND $PowerProduction > 0 ``` --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://doc.moost.io/platform-manual/rules/rule-language/operations/and.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.