I’d like to thank Claude Rubinson for his thoughtful critique [3] of my remarks in reference [1] on nulls and three-valued logic (3VL). Clearly we’re in agreement on the major issues; as Rubinson says, “I agree with Date that three-valued logic is incompatible with database management systems.” We also agree that null isn’t a value; as Rubinson says, “SQL defines null not as a value but a flag.” However, I’d like to comment on three specific issues arising from Rubinson’s article. Note: All otherwise unattributed quotes are from that article. Note too that I follow Rubinson (for the most part) in using the SQL terminology of tables, columns, and rows.