ABSTRACT
99Note.—Terms that are undistributed in the original proposition must remain undistributed in the derivative proposition if the immediate inference is to be valid. https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780367854348/472adaeb-ae8e-47ea-9336-6c734a9d81f6/content/pg99_001.tif"/>
