The subject of claims against the bankrupt estate involves: A. What claims provable in bankruptcy; B. Proof and allowance of claims; C. Secured and lien claims; D. Claims having priority; E. Claims of preferred creditors; F. Dividends on claims; G. Compositions with creditors; H. Set offs.
The subject of Discharge of Claims is covered in a separate chapter.
If a claim is provable in bankruptcy, it will be discharged (unless one of the exceptions) whether actually proved or not if the creditors have notice.