Yes, phil is a prequisite for mono (poly is not a pre for phil). I had poly and was researching phil. Using the trick i was told mono would not be available to reserach once i had got phil, but when i got phil i was able to chose mono as my free advance.
Graag
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A man could not be in two places at the same time unless he were a bird!
#47222759
Graag
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A man could not be in two places at the same time unless he were a bird!
#47222759
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