Nuprl - Pf div_4_to

(11steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc

1. a:
2. b: {...-1}
3. a = (a (-b))(-b)+(a rem -b)
4. 0(a rem -b) & (a rem -b) < -b
5. a = (a b)b+(a rem b)
6. 0(a rem b) & (a rem b) < -b

(a b) = -(a (-b))

By: Analyze 6 THEN Analyze 4

Generated subgoal:

1 4. 0(a rem -b)
5. (a rem -b) < -b
6. a = (a b)b+(a rem b)
7. 0(a rem b)
8. (a rem b) < -b
(a b) = -(a (-b))

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(11steps) PrintForm Definitions Lemmas int 2 Sections StandardLIB Doc