Final answer:
The interpretation of the classical sequent Gamma|- Delta according to the deductive theorem is that Gamma makes at least one of Delta true.
Step-by-step explanation:
The interpretation of the classical sequent Gamma|- Delta according to the deductive theorem is that Gamma makes at least one of Delta true. In deductive reasoning, the Gamma represents the premises or the statements we start with, and the Delta represents the conclusion we want to derive. The deductive theorem tells us that if the premises in Gamma are true, then the conclusion in Delta must also be true.