sto thema me ton Prodoth loipon (mias k theleis to P kefalaio) 1+1=2 ....apla pragmata ...ta exei grapsei k eksakoloythei na ta grafei h istoria para tis apegnosmenes k thliberes prospatheies na doseis allo apotelesma se mia aplh mathimatikh eksisosh.....
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