'basic logic' is a correct and usable phrase in written English.
An example sentence might be: "The class discussed the basics of logic and how to apply it to everyday life."
Instead, basic logic must be non-classical, to avoid a logical disaster of the kind we reviewed in §2.
Some of this is basic logic.
Common courtesy met basic logic there.
Most importantly, he sought to publish them, which is the basic logic of this collection.
"There is something wrong with the basic logic of those who spread these spurious charges.
And yet the basic logic of the enfolding program seemed sound.
You just have to fit it all together, using basic logic.
Instead, the basic logic of austerity has been accepted by almost everyone.
But it probably would not, because the basic logic of the two situations is very similar.
Beyond that basic logic — nobody wants to waste money — there are real dollars at stake.
The structure too has an apparently basic logic, with its austere lines building intensity through repetition.
