rational explanations, logical explanations, sensible explanations, plausible explanations, credible explanations, justifiable explanations, sound explanations, coherent explanations, valid explanatio... [more]
rational explanations, logical explanations, sensible explanations, plausible explanations, credible explanations, justifiable explanations, sound explanations, coherent explanations, valid explanatio... [more]
defending a claim, supporting a statement, backing up an assertion, proving a point, substantiating a claim, validating an assertion, corroborating a statement, affirming a claim, upholding an asserti... [more]