Specimen artis rationcinandi naturalis et artificialis ad pantosophiae principia manuducens (1684)
Kueffelaer, Abraham Johann · Hamburg ; [Utrecht] : H. Künraht · leaf 394
88 . De Hyperboleproprietatibus. Recangulum adrect- lita qua- lad qua: unicum qua- angulum. dratum |dratum drato ex fe CGR unà cum | [ex NM CGR-TFR px &an - : Es ex NM & SEN. Unde per 17. 4. Euclid. & dividendo] « erit ut TRADES rectan-|ita rectan-!ad qua-- ex gulum ex|gulum exidratum. ex FR CGR |… … hoc eft per 26.6. Euc.ita crit recta adrect. | TN [| SN. Undé
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