Team Affleck needs to acknowledge that some criticisms are valid.
After Maher-Affleck, We Need an Honest—and Calm—Dialogue on Islam|Dean Obeidallah|October 10, 2014|DAILY BEAST
I submit that, from Mill's point of view, these are all valid reasons why they should not choose the higher life.
The Contemporary Review, Volume 36, November 1879|Various
They are frequently (and on valid linguistic grounds) lumped with the Bannock, as was done by Ross.
Shoshone-Bannock Subsistence and Society|Robert F. Murphy
Men with a vote have no valid excuse for resorting to the use of illegal means to fight their battles.
The Life and Work of Susan B. Anthony (Volume 2 of 2)|Ida Husted Harper
No particular language is required to make a valid assignment.
Cyclopedia of Commerce, Accountancy, Business Administration, v. 3|Various
She faintly sickened, however, with the sense that there was as yet no valid right poor Owen could give.
The Spoils of Poynton|Henry James
British Dictionary definitions for valid
valid
/ (ˈvælɪd) /
adjective
having some foundation; based on truth
legally acceptablea valid licence
having legal force; effective
having legal authority; binding
having some force or cogencya valid point in a debate
logic(of an inference or argument) having premises and conclusion so related that whenever the former are true the latter must also be true, esp (formally valid) when the inference is justified by the form of the premises and conclusion alone. Thus Tom is a bachelor; therefore Tom is unmarried is valid but not formally so, while today is hot and dry; therefore today is hot is formally validCompare invalid 2 (def. 2)