Actually Sage's logic is fine here, the bug with bool(val>0) is in 
Maxima.The default with bool(relation) is to use RIF and at the default 
setting it cannot decide, so ultimately Maxima is called:

(%i2) is (%pi-(1116521080257783321*2^(23/2))/1029347477390786609545>0);
(%o2)                                true


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