How can I prove / disprove If A ↠ B then AC ↠ B

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                           If A ↠ B then AC ↠ B is it true or false and if so can have example why?

                        

Asked by omer (1 rep)

Nov 30, 2021, 05:00 PM
Last activity: Dec 1, 2021, 08:32 AM