\msg_set:nnn{stex}{error/unknownlanguage}{
  Unknown~language:~#1
}
\msg_set:nnn{stex}{warning/nomathhub}{
  MATHHUB~system~variable~not~found~and~no~
  \tl_to_str:n{\mathhub}-value~set!^^JUsing~HOME/MathHub.
}
\msg_set:nnn{stex}{error/deactivated-macro}{
  The~\tl_to_str:n{#1}~command~is~only~allowed~in~#2!
}
\msg_set:nnn{stex}{error/metagroup/missing}{
  No~metagroup~by~ID~#1
}
\msg_set:nnn{stex}{error/noarchive}{
  No~archive~#1~found~in~#2
}
\msg_set:nnn{stex}{error/notinarchive}{
  Not~currently~in~an~archive,~but~\tl_to_str:n{#1}~
  needs~one!
}
\msg_set:nnn{stex}{error/nofile}{
  \tl_to_str:n{#1}~could~not~find~file~#2
}
\msg_set:nnn{stex}{error/twofiles}{
  \tl_to_str:n{#1}~found~two~candidates~for~#2
}
\msg_set:nnn{stex}{error/invalid-uri}{
  Invalid~URI:~#1~(#2)
}
\msg_set:nnn{stex}{error/misused-uri}{
  Misused~URI:~#1
}
\msg_set:nnn{stex}{error/invalid-dpath}{
  Not~a~namespace~URI:~#1
}
\msg_set:nnn{stex}{error/extrefmissing}{
  Missing~in~or~cite~value~for~\detokenize{\extref}!
}
\msg_set:nnn{stex}{warning/smsmissing}{
  .sref~file~#1~doesn't~exist!
}
\msg_set:nnn{stex}{warning/smslabelmissing}{
  No~label~#2~in~.sref~file~#1!
}
\msg_set:nnn{stex}{error/unknownmodule}{
  No~module~#1~found
}
\msg_set:nnn{stex}{error/unknownstructure}{
  No~mathstructure~#1~found
}
\msg_set:nnn{stex}{error/syntax}{
  Syntax~error:~#1
}
\msg_set:nnn{stex}{error/siglanguage}{
  Module~#1~declares~signature~#2,~but~does~not~
  declare~its~language
}
\msg_set:nnn{stex}{warning/deprecated}{
  #1~is~deprecated;~please~use~#2~instead!
}
\msg_set:nnn{stex}{error/conflictingmodules}{
  Conflicting~imports~for~module~#1
}
\msg_set:nnn{stex}{error/misused-importmodule}{
  Misused~Importmodule~statement:~#1
}
\msg_set:nnn{stex}{error/wrongargs}{
  args~value~in~symbol~declaration~for~#1~
  needs~to~be~i,~a,~b~or~B,~but~#2~given
}
\msg_set:nnn{stex}{error/unknownsymbol}{
  No~symbol~#1~found!
}
\msg_set:nnn{stex}{error/seqlength}{
  Expected~#1~arguments;~got~#2!
}
\msg_set:nnn{stex}{error/unknownnotation}{
  Unknown~notation~#1~for~#2!
}
\msg_set:nnn{stex}{error/nonotation}{
  Symbol~#1~invoked,~but~has~no~notation#2!
}
\msg_set:nnn{stex}{error/notationarg}{
  Error~in~parsing~notation~#1
}
\msg_set:nnn{stex}{error/noop}{
  Symbol~#1~has~no~operator~notation~for~notation~#2
}
\msg_set:nnn{stex}{error/notallowed}{
  Symbol~invokation~#1~not~allowed~in~notation~component~of~#2
}
\msg_set:nnn{stex}{error/doubleargument}{
  Argument~#1~of~symbol~#2~already~assigned
}
\msg_set:nnn{stex}{error/overarity}{
  Argument~#1~invalid~for~symbol~#2~with~arity~#3
}
\msg_set:nnn{stex}{error/notikz}{
  #1~requires~tikz~to~be~loaded
}
\msg_set:nnn{stex}{error/unknownsymbolin}{
  No~symbol~#1~found~in~#2!
}
\msg_set:nnn{stex}{error/symbolalreadydefined}{
  Symbol~#1~in~#2~already~defined!
}
\msg_set:nnn{stex}{error/assocarg}{
  First~argument~of~#1~needs~to~be~an~a-mode~or~B-mode~argument
}
\msg_set:nnn{stex}{error/invalidarg}{
  Invalid~argument~#1~(already~provided~or~does~not~exist~
  for~#2)
}
\msg_set:nnn{stex}{error/needsdefiniens}{
  Symbol~#1~needs~to~be~defined~in~#2
}
\msg_set:nnn{stex}{error/unknownfield}{
  mathstructure~(instance)~has~no~component~"#1"
}
\msg_set:nnn{stex}{error/unknownfieldass}{
  mathstructure~has~no~component~"#1";~can~not~assign
}
\msg_set:nnn{stex}{error/definiensfor}{
  \definiens~macro:~unclear~which~symbol~is~being~defined
}
\msg_set:nnn{stex}{error/conclusionfor}{
  \conclusion~macro:~unclear~which~assertion~is~being~concluded
}
\msg_set:nnn{stex}{error/nomorphism}{
  No~morphism~#1~found~in~domain~of~morphism
}
\msg_set:nnn{stex}{error/nestedproblem}{
  Nested~problem;~sproblem~not~allowed~in~another~sproblem
}
\str_set:Nn \spfsketchenvautorefname {Proof~sketch}
\str_set:Nn \sproofautorefname {Proof}
\str_set:Nn \spfstepautorefname {Proof~step}