Bouligand, Georges Sur les conditions de variance des propositions. (French) Zbl 0011.24203 C. R. Acad. Sci., Paris 200, 1509-1511 (1935). Page: −5 −4 −3 −2 −1 ±0 +1 +2 +3 +4 +5 Show Scanned Page Cited in 1 Review Keywords:foundations, philosophy, logic × Cite Format Result Cite Review PDF