From: Ferruccio Guidi <ferruccio.guidi@unibo.it>
Date: Fri, 1 Jan 2021 14:42:16 +0000 (+0100)
Subject: arithmetics for λδ
X-Git-Tag: make_still_working~166
X-Git-Url: http://matita.cs.unibo.it/gitweb/?a=commitdiff_plain;h=ccf5878f2a2ec7f952f140e162391708a740517b;hp=ccf5878f2a2ec7f952f140e162391708a740517b;p=helm.git

arithmetics for λδ

strict order for non-ngative integers completed
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