A more thorough explanation:

Term: ex concessis
Definition: Ex concessis means that something is allowed based on what has already been agreed upon or accepted. It refers to a conclusion that is drawn from previously established facts or premises.
Example: If we accept that all humans are mortal, then ex concessis, we can conclude that John, being a human, is also mortal. This means that we can draw a conclusion based on what has already been established.
Explanation: The example shows how ex concessis is used to draw a conclusion based on previously established facts. It assumes that all humans are mortal, and from this, we can conclude that John, being a human, is also mortal. This is an example of ex concessis because it is based on what has already been agreed upon or accepted.