Changeset 257 for Deliverables/D4.1/Matita/Arithmetic.ma
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 Nov 23, 2010, 11:43:14 AM (10 years ago)
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Deliverables/D4.1/Matita/Arithmetic.ma
r248 r257 7 7 include "BitVector.ma". 8 8 include "List.ma". 9 10 ndefinition eight ≝ exponential (S(S(Z))) (S(S(S(Z)))). 9 10 ndefinition one ≝ S Z. 11 ndefinition two ≝ (S(S(Z))). 12 ndefinition three ≝ two + one. 13 ndefinition four ≝ two + two. 14 ndefinition five ≝ three + two. 15 ndefinition six ≝ three + three. 16 ndefinition seven ≝ three + four. 17 ndefinition eight ≝ four + four. 18 ndefinition nine ≝ five + four. 19 ndefinition ten ≝ five + five. 20 ndefinition eleven ≝ six + five. 21 ndefinition twelve ≝ six + six. 22 ndefinition thirteen ≝ seven + six. 23 ndefinition fourteen ≝ seven + seven. 24 ndefinition fifteen ≝ eight + seven. 11 25 ndefinition sixteen ≝ eight + eight. 26 ndefinition seventeen ≝ nine + eight. 27 ndefinition eighteen ≝ nine + nine. 28 ndefinition nineteen ≝ ten + nine. 12 29 ndefinition one_hundred_and_twenty_eight ≝ sixteen * eight. 13 30 ndefinition two_hundred_and_fifty_six ≝
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