The Income Statement shows the results of operating a business. Another Question Go to Table of Contents 3d. Another Question Go to Table of Contents 4a. That is about all it does prove. Another Question Go to Table of Contents 4b.
Nothing can prove everything is correct.
Another Question Go to Table of Contents 4c. A check-out sheet or some other such tool might help to reconcile a cash count but this is not the function of a trial balance. Another Question Go to Table of Contents 4d. Only reconciling to other sources can prove the accuracy of account balances. An example of this would be comparing your Cash account balance to the bank statement.