Hi, I have got a question here.

Is the logical conclusionB→ 'A,C→A, C'B correct? First I do not understand what the statementC'B means exactly. I googled and it says it means 'B is provable from C but I still do not understand what this is meant. I created a truth table for A, B, C andB→ 'A,C→A.I do not know whether that helps? Maybe from the truth table I can get the answer? Any help is appreciated and thanks in advance!