law of parsimony vs Occam's Razor

law of parsimony and Occam's Razor both are nouns.

Word	Noun	Adjective	Verb	Adverb
law of parsimony	Yes	No	No	No
Occam's Razor	Yes	No	No	No

As nouns, law of parsimony and Occam's Razor are synonyms defined as:

law of parsimony and Occam's Razor: the principle that entities should not be multiplied needlessly; the simplest of two competing theories is to be preferred

Other synonyms of law of parsimony include Ockham's Razor, principle of parsimony.

law of parsimony (noun)	Occam's Razor (noun)
the principle that entities should not be multiplied needlessly; the simplest of two competing theories is to be preferred	the principle that entities should not be multiplied needlessly; the simplest of two competing theories is to be preferred