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- fmod MYNAT-SIMPLE is
- sort Nat .
- op 0 : -> Nat .
- op s_ : Nat -> Nat .
- op _+_ : Nat Nat -> Nat .
- op _<_ : Nat Nat -> Bool .
- op _>_ : Nat Nat -> Bool .
- op _<=_ : Nat Nat -> Bool .
- vars N M : Nat .
- eq 0 + M = M .
- eq (s N) + M = s(N + M) .
- eq 0 < 0 = false .
- eq 0 < (s N) = true .
- eq (s M) < 0 = false .
- eq (s M) < (s N) = M < N .
- eq M > N = N < M .
- endfm
- red (s s s 0) > (s s 0) .
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