extrapolate vs logical system

extrapolate is not a noun while logical system is a noun.

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

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

extrapolate (verb)	logical system (verb)
estimate the value of something based on known values
gain knowledge of (an area not known or experienced) by extrapolating
draw from specific cases for more general cases