λδ digital library (LDDL)
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homenewsspecificationspecification log
documentationimplementation
forewordmilestonesversion 2(background - syntax - core - applications)
version 2helenaOpen Symbolic Notation (OSN)
citationsvisibilityversion 1(background - core)(static HELM directory)version 1library(static LDDL directory)
Constant [butterfly]
Declaration: isseti (ld:/Environment/grundlagen_2/l/e/st/isseti.ld)
Informal description: ""
{Π[sigma:Set].​Π[s0:(sigma).​set].​Π[t0:(sigma).​set].​∀[i:{(t0).​(s0).​(sigma)}.​incl].​∀[j:{(s0).​(t0).​(sigma)}.​incl]}.​{(t0).​(s0).​((sigma).​set)}.​is
Validation parameters: sort hierarchy = "Z2", kernel options = ""
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Last update: Sat, 12 Dec 2020 10:46:54 +0100