Assume that "P" and "Q" are logic propositions. I want to say "Since Q is true, so P is true". I want to say this, like one of the two sentences below. Which one is true (better)?
P follows by Q.
P follows from Q.
Thank you.
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You can also say Q implies P (Q => P). math.niu.edu/~richard/Math101/implies.pdf – MorganFR May 13 '16 at 13:25
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@MorganFR Note, however, that imply is ambiguous: it may designate either entailment (a necessary inference) or implicature (a default but 'cancellable' inference). – StoneyB on hiatus May 13 '16 at 13:47
B follows from A
means that B can be derived logically from A.
"Follows from" is idiomatic.
