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            49D(+0) (+ variant) 49D(+1) (+ scholar, scientist (at work)) 49D(+2) (+ scholar, scientist in non-work situations) 49D(+3) (+ portrait of scholar, scientist) 49D(+4) (+ professional clothes of scholar, scientist) 49D(+5) (+ scientific research) 49D(+6) (+ divulgation of the results of research) 49D(+7) (+ basic phenomena and processes in the natural sciences) 49D(+8) (+ plagiary ~ sciences) 49D(+9) (+ counterfeit, fake, forgery ~ sciences) 49D0 'Mathematica'; 'Mathematica' (Ripa) 49D1 arithmetic 49D2 algebra and statistics 49D3 planimetry, geometry 49D4 stereometry, solid geometry 49D5 drawing, measuring, calculating 49D6 some other branches of mathematics 49D7 mathematical perspective