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<H1>Lambda Calculus in de Bruijn's Notation</H1>
This theory defines lambda-calculus terms with de Bruijn indixes and proves
confluence of beta, eta and beta+eta.
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The paper
<A HREF="http://www.in.tum.de/~nipkow/pubs/jar2001.html">
More Church-Rosser Proofs (in Isabelle/HOL)</A>
describes the whole theory.
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<P>Last modified 20.5.2000
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