Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of O-type (Particular Negative) contraposition. Does ‘Some cats are not felines’ imply ‘Some non-felines are not non-cats’?
Flash-based interactive example of Venn diagram-enhanced categorical reasoning. This one is of O-type (Particular Negative) contraposition. Does ‘Some cats are not felines’ imply ‘Some non-felines are not non-cats’?