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-# NIP-91: AND Operator in Filters
-
-Enable `AND` within a single tag filter by using an `&` modifier in filters for indexable tags.
-
-```
-filters: {
-  "kinds": [1],
-  "&t": ["meme", "cat"],
-  "#t": ["black", "white"]
-}
-// returns kind `1` events with `t` tags that have both "meme" and "cat" that have the tag "black" or "white"
-```
-
-## Rules
-
-- `AND` **MUST** take precedence over `OR`
-- Tag values used in `AND` **SHOULD NOT** be used in standard `OR` tags [`#`]
-- Any tag value used in `AND` **SHOULD** be ignored in `OR`