%0 Journal Article %A Lévi, G. %A Pegna, A. M. %T Top-down mathematical semantics and symbolic execution %J RAIRO. Informatique théorique %D 1983 %P 55-70 %V 17 %N 1 %I EDP-Sciences %U http://archive.numdam.org/item/ITA_1983__17_1_55_0/ %G en %F ITA_1983__17_1_55_0