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active U201 tt N X XS U202 isNatural X N X XS active pair X1 X2 active X1 active U131 X1 X2 U131 active X1 X2 active U61 X active X afterNth X1 mark X2 afterNth X1 X2 U22 ok X1 ok X2 U22 X1 X2 U121 mark X U121 X active isLNat take V1 V2 isNatural V1 snd ok X snd X U203 ok X1 ok X2 ok X3 ok X4 U203 X1 X2 X3 X4 active U202 X1 X2 X3 X4 U202 active X1 X2 X3 X4 U171 ok X1 ok X2 ok X3 U171 X1 X2 X3 active U203 X1 X2 X3 X4 active X1 active s X active X active U141 X1 X2 active X1 active snd pair X Y isLNat X proper U121 X U121 proper X active snd X snd active X proper U222 X1 X2 X3 proper X1 active natsFrom N isNatural N U42 mark X U42 X active isLNat cons V1 V2 U51 isNatural V1 V2 proper U202 X1 X2 X3 X4 proper X3 active sel N XS isNatural N U81 mark X U81 X U203 mark X1 X2 X3 X4 U203 X1 X2 X3 X4 proper splitAt X1 X2 splitAt proper X1 proper X2 U211 mark X1 X2 U211 X1 X2 active U161 tt N natsFrom s N proper head X proper X proper U201 X1 X2 X3 X4 proper X3 proper U201 X1 X2 X3 X4 proper X1 active U11 tt N XS isLNat XS U32 mark X1 X2 U32 X1 X2 proper tail X proper X proper U181 X1 X2 proper X2 active U52 X U52 active X active isLNat fst V1 U61 isPLNat V1 proper take X1 X2 proper X1 proper U31 X1 X2 X3 proper X2 active isNatural sel V1 V2 isNatural V1 active U221 tt N XS U222 isLNat XS N XS proper U42 X proper X active isPLNat splitAt V1 V2 isNatural V1 active U222 tt N XS fst splitAt N XS U12 ok X1 ok X2 ok X3 U12 X1 X2 X3 s mark X s X proper U211 X1 X2 proper X1 proper U131 X1 X2 proper X2 proper U204 X1 X2 proper X2 U71 ok X U71 X proper U191 X1 X2 U191 proper X1 proper X2 proper U152 X proper X proper splitAt X1 X2 proper X2 active U42 X active X active U211 tt XS U212 isLNat XS XS active isLNat natsFrom V1 U71 isNatural V1 active U42 X U42 active X active head cons N XS U31 isNatural N N XS U101 ok X1 ok X2 U101 X1 X2 proper U41 X1 X2 proper X1 U111 mark X U111 X fst mark X fst X proper U201 X1 X2 X3 X4 proper X2 proper U222 X1 X2 X3 proper X2 U31 ok X1 ok X2 ok X3 U31 X1 X2 X3 proper U102 X U102 proper X proper U21 X1 X2 X3 proper X3 U12 mark X1 X2 X3 U12 X1 X2 X3 active natsFrom N U161 isNatural N N proper U202 X1 X2 X3 X4 proper X1 proper U81 X U81 proper X proper sel X1 X2 proper X2 active U161 X1 X2 active X1 active splitAt X1 X2 active X2 afterNth ok X1 ok X2 afterNth X1 X2 active U51 tt V2 isLNat V2 proper U101 X1 X2 proper X1 proper U61 X proper X active U101 X1 X2 active X1 active U202 tt N X XS U203 isLNat XS N X XS proper U204 X1 X2 proper X1 proper snd X snd proper X active U222 tt N XS splitAt N XS splitAt mark X1 X2 splitAt X1 X2 proper afterNth X1 X2 proper X2 proper U182 X1 X2 proper X2 active U181 tt Y isLNat Y U221 mark X1 X2 X3 U221 X1 X2 X3 take X1 mark X2 take X1 X2 active U41 X1 X2 U41 active X1 X2 take mark X1 X2 take X1 X2 proper pair X1 X2 proper X2 U132 mark X U132 X proper U212 X1 X2 proper X2 proper U172 X1 X2 X3 proper X1 active U191 X1 X2 U191 active X1 X2 U201 mark X1 X2 X3 X4 U201 X1 X2 X3 X4 proper U141 X1 X2 proper X2 active U51 X1 X2 active X1 U181 ok X1 ok X2 U181 X1 X2 active take X1 X2 take X1 active X2 proper U11 X1 X2 X3 proper X3 proper isNatural X isNatural proper X active isLNat afterNth V1 V2 U41 isNatural V1 V2 active U31 X1 X2 X3 U31 active X1 X2 X3 proper U181 X1 X2 U181 proper X1 proper X2 proper U22 X1 X2 proper X1 U191 mark X1 X2 U191 X1 X2 U142 mark X U142 X active U31 X1 X2 X3 active X1 proper U12 X1 X2 X3 U12 proper X1 proper X2 proper X3 active afterNth X1 X2 afterNth X1 active X2 active U11 tt N XS U12 isLNat XS N XS active U141 tt V2 isLNat V2 proper s X proper X active fst pair X Y isLNat X sel ok X1 ok X2 sel X1 X2 proper U51 X1 X2 proper X1 proper U202 X1 X2 X3 X4 proper X4 proper U41 X1 X2 proper X2 proper U71 X U71 proper X proper U203 X1 X2 X3 X4 proper X4 U161 ok X1 ok X2 U161 X1 X2 proper U41 X1 X2 U41 proper X1 proper X2 U141 mark X1 X2 U141 X1 X2 proper pair X1 X2 pair proper X1 proper X2 active U41 tt V2 isLNat V2 proper U181 X1 X2 proper X1 U211 ok X1 ok X2 U211 X1 X2 active U221 X1 X2 X3 active X1 U61 mark X U61 X active U211 X1 X2 U211 active X1 X2 active U61 X U61 active X active isPLNat pair V1 V2 isLNat V1 active U171 X1 X2 X3 U171 active X1 X2 X3 proper U201 X1 X2 X3 X4 U201 proper X1 proper X2 proper X3 proper X4 proper U203 X1 X2 X3 X4 proper X3 proper U212 X1 X2 proper X1 tail mark X tail X active U203 tt N X XS splitAt N XS active U202 X1 X2 X3 X4 active X1 splitAt ok X1 ok X2 splitAt X1 X2 active U81 X active X proper U11 X1 X2 X3 proper X2 active U172 tt N XS head afterNth N XS active fst X active X natsFrom mark X natsFrom X proper U201 X1 X2 X3 X4 proper X4 proper U102 X proper X proper U91 X proper X proper U152 X U152 proper X active U21 X1 X2 X3 U21 active X1 X2 X3 proper afterNth X1 X2 afterNth proper X1 proper X2 active U191 tt XS pair nil XS proper U21 X1 X2 X3 proper X2 U222 ok X1 ok X2 ok X3 U222 X1 X2 X3 active isLNat afterNth V1 V2 isNatural V1 active isLNat fst V1 isPLNat V1 proper U52 X proper X proper take X1 X2 proper X2 active U204 pair YS ZS X pair cons X YS ZS proper afterNth X1 X2 proper X1 proper U32 X1 X2 proper X2 proper U12 X1 X2 X3 proper X3 active U132 X active X active isLNat natsFrom V1 isNatural V1 U22 mark X1 X2 U22 X1 X2 proper U222 X1 X2 X3 U222 proper X1 proper X2 proper X3 active s X s active X active afterNth X1 X2 afterNth active X1 X2 active isNatural s V1 isNatural V1 true top ok X top active X top mark X top proper X true Failed! NaTT certifiable-1.6