1				2
												3
		4
						5
			6
7
							8
	9
			10

Across 1. It is concerned to provide sound method for distinguishing good from bad reasoning. 4. is a conclusion about the unknown made on the basis of the known, 6. Particular propositions across from each other at the buttom of the square. 7. Is a set of two or more proposition related to each other. 8. is a mistake in argument that arises from something other than merely false premises. 9. The basic unit of logical analysis and understanding. 10. The universal proposition that appear across from each other at the top of the s quare.

Down 2. is an argument consisting of exactly three categorical proposition in which there appear a total of exactly three categorical terms, each of which is used exactly twice. 3. Consist in switching the position of the subject term with predicate term. 5. General rules are applied to particular cases they were not intended to cover.