Herbrand function

== English == === Etymology === Named after Jacques Herbrand (1908–1931), French mathematician. === Noun === Herbrand function (plural Herbrand functions) (logic) A function which replaces a variable bound by a universal quantifier which lies in the scope of an even number of logical negations; such function is a function of the remaining bound variables whose scope contain the given variable (being replaced). ==== Related terms ==== Herbrandization