[ Seymour Aubrey Papert, MIT mathematician and computer scientist. ] Typed scientific paper in French: 'Sur les treillis des ouverts et les paratopologies | par Mrs Dona Papert et Seymour Papert'.

Papert has been described by by Marvin Minsky as 'the greatest living mathematics educator'. At the time of this paper he was studying for a PhD at Cambridge University and living in London, where he was a leading figure in the revolutionary socialist circle centred on the magazine 'Socialist Review'. 9pp., 8vo. On nine leaves stapled together. In fair condition, aged and worn, with creasing to last couple of leaves. Divided into three parts: '1. Propriétés des treillis des ouverts et représentation des treillis comme treillis d'ouverts; | 2. Etude de théorèmes classiques de la topologie transposés en théorèmes de treillis; | 3. Quelques résultats sur des catégories d'applications de treillis qui renferment également des généralisations de théorèmes topologiques.' No other copy traced, either on COPAC or OCLC WorldCat.