(0) Obligation:
Q restricted rewrite system:
The TRS R consists of the following rules:
a__U101(tt, V2) → a__U102(a__isLNat(V2))
a__U102(tt) → tt
a__U11(tt, N, XS) → a__U12(a__isLNat(XS), N, XS)
a__U111(tt) → tt
a__U12(tt, N, XS) → a__snd(a__splitAt(mark(N), mark(XS)))
a__U121(tt) → tt
a__U131(tt, V2) → a__U132(a__isLNat(V2))
a__U132(tt) → tt
a__U141(tt, V2) → a__U142(a__isLNat(V2))
a__U142(tt) → tt
a__U151(tt, V2) → a__U152(a__isLNat(V2))
a__U152(tt) → tt
a__U161(tt, N) → cons(mark(N), natsFrom(s(N)))
a__U171(tt, N, XS) → a__U172(a__isLNat(XS), N, XS)
a__U172(tt, N, XS) → a__head(a__afterNth(mark(N), mark(XS)))
a__U181(tt, Y) → a__U182(a__isLNat(Y), Y)
a__U182(tt, Y) → mark(Y)
a__U191(tt, XS) → pair(nil, mark(XS))
a__U201(tt, N, X, XS) → a__U202(a__isNatural(X), N, X, XS)
a__U202(tt, N, X, XS) → a__U203(a__isLNat(XS), N, X, XS)
a__U203(tt, N, X, XS) → a__U204(a__splitAt(mark(N), mark(XS)), X)
a__U204(pair(YS, ZS), X) → pair(cons(mark(X), YS), mark(ZS))
a__U21(tt, X, Y) → a__U22(a__isLNat(Y), X)
a__U211(tt, XS) → a__U212(a__isLNat(XS), XS)
a__U212(tt, XS) → mark(XS)
a__U22(tt, X) → mark(X)
a__U221(tt, N, XS) → a__U222(a__isLNat(XS), N, XS)
a__U222(tt, N, XS) → a__fst(a__splitAt(mark(N), mark(XS)))
a__U31(tt, N, XS) → a__U32(a__isLNat(XS), N)
a__U32(tt, N) → mark(N)
a__U41(tt, V2) → a__U42(a__isLNat(V2))
a__U42(tt) → tt
a__U51(tt, V2) → a__U52(a__isLNat(V2))
a__U52(tt) → tt
a__U61(tt) → tt
a__U71(tt) → tt
a__U81(tt) → tt
a__U91(tt) → tt
a__afterNth(N, XS) → a__U11(a__isNatural(N), N, XS)
a__fst(pair(X, Y)) → a__U21(a__isLNat(X), X, Y)
a__head(cons(N, XS)) → a__U31(a__isNatural(N), N, XS)
a__isLNat(nil) → tt
a__isLNat(afterNth(V1, V2)) → a__U41(a__isNatural(V1), V2)
a__isLNat(cons(V1, V2)) → a__U51(a__isNatural(V1), V2)
a__isLNat(fst(V1)) → a__U61(a__isPLNat(V1))
a__isLNat(natsFrom(V1)) → a__U71(a__isNatural(V1))
a__isLNat(snd(V1)) → a__U81(a__isPLNat(V1))
a__isLNat(tail(V1)) → a__U91(a__isLNat(V1))
a__isLNat(take(V1, V2)) → a__U101(a__isNatural(V1), V2)
a__isNatural(0) → tt
a__isNatural(head(V1)) → a__U111(a__isLNat(V1))
a__isNatural(s(V1)) → a__U121(a__isNatural(V1))
a__isNatural(sel(V1, V2)) → a__U131(a__isNatural(V1), V2)
a__isPLNat(pair(V1, V2)) → a__U141(a__isLNat(V1), V2)
a__isPLNat(splitAt(V1, V2)) → a__U151(a__isNatural(V1), V2)
a__natsFrom(N) → a__U161(a__isNatural(N), N)
a__sel(N, XS) → a__U171(a__isNatural(N), N, XS)
a__snd(pair(X, Y)) → a__U181(a__isLNat(X), Y)
a__splitAt(0, XS) → a__U191(a__isLNat(XS), XS)
a__splitAt(s(N), cons(X, XS)) → a__U201(a__isNatural(N), N, X, XS)
a__tail(cons(N, XS)) → a__U211(a__isNatural(N), XS)
a__take(N, XS) → a__U221(a__isNatural(N), N, XS)
mark(U101(X1, X2)) → a__U101(mark(X1), X2)
mark(U102(X)) → a__U102(mark(X))
mark(isLNat(X)) → a__isLNat(X)
mark(U11(X1, X2, X3)) → a__U11(mark(X1), X2, X3)
mark(U12(X1, X2, X3)) → a__U12(mark(X1), X2, X3)
mark(U111(X)) → a__U111(mark(X))
mark(snd(X)) → a__snd(mark(X))
mark(splitAt(X1, X2)) → a__splitAt(mark(X1), mark(X2))
mark(U121(X)) → a__U121(mark(X))
mark(U131(X1, X2)) → a__U131(mark(X1), X2)
mark(U132(X)) → a__U132(mark(X))
mark(U141(X1, X2)) → a__U141(mark(X1), X2)
mark(U142(X)) → a__U142(mark(X))
mark(U151(X1, X2)) → a__U151(mark(X1), X2)
mark(U152(X)) → a__U152(mark(X))
mark(U161(X1, X2)) → a__U161(mark(X1), X2)
mark(natsFrom(X)) → a__natsFrom(mark(X))
mark(U171(X1, X2, X3)) → a__U171(mark(X1), X2, X3)
mark(U172(X1, X2, X3)) → a__U172(mark(X1), X2, X3)
mark(head(X)) → a__head(mark(X))
mark(afterNth(X1, X2)) → a__afterNth(mark(X1), mark(X2))
mark(U181(X1, X2)) → a__U181(mark(X1), X2)
mark(U182(X1, X2)) → a__U182(mark(X1), X2)
mark(U191(X1, X2)) → a__U191(mark(X1), X2)
mark(U201(X1, X2, X3, X4)) → a__U201(mark(X1), X2, X3, X4)
mark(U202(X1, X2, X3, X4)) → a__U202(mark(X1), X2, X3, X4)
mark(isNatural(X)) → a__isNatural(X)
mark(U203(X1, X2, X3, X4)) → a__U203(mark(X1), X2, X3, X4)
mark(U204(X1, X2)) → a__U204(mark(X1), X2)
mark(U21(X1, X2, X3)) → a__U21(mark(X1), X2, X3)
mark(U22(X1, X2)) → a__U22(mark(X1), X2)
mark(U211(X1, X2)) → a__U211(mark(X1), X2)
mark(U212(X1, X2)) → a__U212(mark(X1), X2)
mark(U221(X1, X2, X3)) → a__U221(mark(X1), X2, X3)
mark(U222(X1, X2, X3)) → a__U222(mark(X1), X2, X3)
mark(fst(X)) → a__fst(mark(X))
mark(U31(X1, X2, X3)) → a__U31(mark(X1), X2, X3)
mark(U32(X1, X2)) → a__U32(mark(X1), X2)
mark(U41(X1, X2)) → a__U41(mark(X1), X2)
mark(U42(X)) → a__U42(mark(X))
mark(U51(X1, X2)) → a__U51(mark(X1), X2)
mark(U52(X)) → a__U52(mark(X))
mark(U61(X)) → a__U61(mark(X))
mark(U71(X)) → a__U71(mark(X))
mark(U81(X)) → a__U81(mark(X))
mark(U91(X)) → a__U91(mark(X))
mark(isPLNat(X)) → a__isPLNat(X)
mark(tail(X)) → a__tail(mark(X))
mark(take(X1, X2)) → a__take(mark(X1), mark(X2))
mark(sel(X1, X2)) → a__sel(mark(X1), mark(X2))
mark(tt) → tt
mark(cons(X1, X2)) → cons(mark(X1), X2)
mark(s(X)) → s(mark(X))
mark(pair(X1, X2)) → pair(mark(X1), mark(X2))
mark(nil) → nil
mark(0) → 0
a__U101(X1, X2) → U101(X1, X2)
a__U102(X) → U102(X)
a__isLNat(X) → isLNat(X)
a__U11(X1, X2, X3) → U11(X1, X2, X3)
a__U12(X1, X2, X3) → U12(X1, X2, X3)
a__U111(X) → U111(X)
a__snd(X) → snd(X)
a__splitAt(X1, X2) → splitAt(X1, X2)
a__U121(X) → U121(X)
a__U131(X1, X2) → U131(X1, X2)
a__U132(X) → U132(X)
a__U141(X1, X2) → U141(X1, X2)
a__U142(X) → U142(X)
a__U151(X1, X2) → U151(X1, X2)
a__U152(X) → U152(X)
a__U161(X1, X2) → U161(X1, X2)
a__natsFrom(X) → natsFrom(X)
a__U171(X1, X2, X3) → U171(X1, X2, X3)
a__U172(X1, X2, X3) → U172(X1, X2, X3)
a__head(X) → head(X)
a__afterNth(X1, X2) → afterNth(X1, X2)
a__U181(X1, X2) → U181(X1, X2)
a__U182(X1, X2) → U182(X1, X2)
a__U191(X1, X2) → U191(X1, X2)
a__U201(X1, X2, X3, X4) → U201(X1, X2, X3, X4)
a__U202(X1, X2, X3, X4) → U202(X1, X2, X3, X4)
a__isNatural(X) → isNatural(X)
a__U203(X1, X2, X3, X4) → U203(X1, X2, X3, X4)
a__U204(X1, X2) → U204(X1, X2)
a__U21(X1, X2, X3) → U21(X1, X2, X3)
a__U22(X1, X2) → U22(X1, X2)
a__U211(X1, X2) → U211(X1, X2)
a__U212(X1, X2) → U212(X1, X2)
a__U221(X1, X2, X3) → U221(X1, X2, X3)
a__U222(X1, X2, X3) → U222(X1, X2, X3)
a__fst(X) → fst(X)
a__U31(X1, X2, X3) → U31(X1, X2, X3)
a__U32(X1, X2) → U32(X1, X2)
a__U41(X1, X2) → U41(X1, X2)
a__U42(X) → U42(X)
a__U51(X1, X2) → U51(X1, X2)
a__U52(X) → U52(X)
a__U61(X) → U61(X)
a__U71(X) → U71(X)
a__U81(X) → U81(X)
a__U91(X) → U91(X)
a__isPLNat(X) → isPLNat(X)
a__tail(X) → tail(X)
a__take(X1, X2) → take(X1, X2)
a__sel(X1, X2) → sel(X1, X2)
Q is empty.