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At: rem rec case 1 1

1. a:
2. n:
3. an

a-(a n)n = a-n-((a-n) n)n

By: RW (NthC 1 (LemmaC Thm* a:, n:. an (a n) = ((a-n) n)+1)) 0

Generated subgoal:

1 a-(((a-n) n)+1)n = a-n-((a-n) n)n


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(5steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc