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(* Title: ZF/IMP/Assign.thy
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ID: $Id$
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Author: Heiko Loetzbeyer & Robert Sandner, TUM
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Copyright 1994 TUM
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*)
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Assign = Aexp +
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consts
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"assign" :: "[i,i,i] => i" ("_[_'/_]" [900,0,0] 900)
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rules
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assign_def "sigma[m/x] == lam y:loc. if(y=x,m,sigma`y)"
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end
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