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Inasmuch As, in So Far As
These pomposities can always be replaced by something simpler and clearer.
Inasmuch as is just a fancy (and archaic) way of saying seeing that, since or because.
In so far as (sometimes insofar as) means much the same thing, or to the extent that.
They add nothing to your prose except flab (as does to the extent that).
Rephrase.
Start the discussion!