premise: The Samsung Galaxy Tab 7.7 is a tablet computer of a series of Android-based tablet computer produced by Samsung, introduced on 1 September 2011 at IFA in Berlin. Related models are the Galaxy Tab 7.0 Plus, Samsung Galaxy Tab 2 7.0, and Samsung Galaxy Tab 3 7.0.
hypothesis: The Samsung Galaxy 7.7 came out on the market following the release of related models Galaxy Tab 7.0 Plus, Samsung Galaxy Tab 2 7.0, and Samsung Galaxy Tab 3 7.0, all Android-based tablets. Samsung will introduce a Galaxy Tab in Berlin on 1 September, 2111. 
reason: Since September 1st 2111 is in the future it can not be stated one way or the other if Samsung will introduce another Galaxy Tab on that date.