logical system vs infer

logical system is a noun but infer is not a noun.

Word	Noun	Adjective	Verb	Adverb
logical system	Yes	No	No	No
infer	No	No	Yes	No

logical system (noun)	infer (noun)
a system of reasoning

logical system (verb)	infer (verb)
	reason by deduction; establish by deduction
	believe to be the case
	guess correctly; solve by guessing
	conclude by reasoning; in logic
	draw from specific cases for more general cases