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Class Notes for CS 818A4 - Spring 2004
SEPARATION LOGIC
6. Trees and Dags
John C. Reynolds
Department of Computer Science
Carnegie Mellon University
April 12, 2004
c
2004 John C. Reynolds
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S-expressions (a la LISP)
2 S-exps i
2 Atoms
or = ( 1 2 ) where 1 ; 2 2 S-exps:
Representing S-expressions by Trees
For 2 S-exps, we dene the assertion
tree (i)
by structural induction: