A more thorough explanation:

Alto et basso is a Latin term used in law that means "of high and low." It refers to the complete submission of all disputes, regardless of their size or importance, to arbitration.

An example of alto et basso would be if two parties had a disagreement over a small matter, such as a minor contract dispute, but instead of going to court, they agreed to submit the matter to an arbitrator for resolution. Another example would be if two countries had a major disagreement over a border dispute, but instead of going to war, they agreed to submit the matter to an international tribunal for resolution.

These examples illustrate the concept of alto et basso because they show how parties can choose to submit any type of dispute, whether big or small, to arbitration instead of resorting to more drastic measures like going to court or engaging in armed conflict.