Based on this example here from the Codex http://codex.wordpress.org/Function_Reference/is_tag:
is_tag( 'mild' ); // When the archive page for tag with the slug of 'mild' is being displayed. is_tag( array( 'sharp', 'mild', 'extreme' ) ); // Returns true when the tag archive being displayed has a slug of either "sharp", "mild", or "extreme".
Does anyone know how to modify the function of WordPress so that it will return true when the tag archive being displayed has the slugs "sharp" and "mild" and "extreme" ?? I need all three slugs to return a true. If there are either of the two slugs, or if there is only one of the slugs, then it returns false.
Is this even possible to do with WordPress?