25A [Effect of a fundamental breach: avoidance of contract];
26A [Notification of avoidance: effective declaration of avoidance];
29A [Parties by agreement may modify or terminate the contract];
49B [Buyer's right to avoid the contract: buyer's loss of right to declare avoidance after delivery];
73C1 [Avoidance in installment contracts: avoidance for both past and future installments];
74A [General rules for measuring damages: loss suffered as consequence of breach];
77A [Obligation to take reasonable measures to mitigate damages];
78A [Interest on delay in receiving price or any other sum in arrears]