
proof  [in mathematics] a formal series of statements showing that if one thing is true something else necessarily follows from it  

validation, proof, substantiation  the act of validating; finding or testing the truth of something  
V2 
proof  knead to reach proper lightness  

proof, test copy, trial impression  [in printing] an impression made to check for errors  

proof  able to withstand  

proof  a trial photographic print from a negative  

proof  a measure of alcoholic strength expressed as an integer twice the percentage of alcohol present (by volume)  
V1, V2 
proof, proofread  read for errors  
V2 
proof  activate by mixing with water and sometimes sugar or milk  
V2 
proof  make or take a proof of, such as a photographic negative, an etching, or typeset  
V2 
proof  make resistant (to harm)  

proof, cogent evidence  any factual evidence that helps to establish the truth of something 