> Welcome to rpg.se! Please take a look at the [tour] and the [help]; they're a useful introduction to the site. SE is a Q&A site rather than a forum, and unfortunately this answer appears deliberately pedantic to the point of uselessness.
Maybe editing in some details would help make it clear why it's a good answer to the question (especially, support for your claim that only Gygax-created D&D editions "count" as D&D, despite Gygax himself making statements--and the various legal/cultural arguments--to the contrary).