Summary: SPASS Input Syntax
Max-Planck-Institut f¨ur Informatik
This document introduces the SPASS input syntax. It came out of the DFG syntax format that was thought to be a
format that can easily be parsed such that it forms a compromise between the needs of the different groups.
The language proposed in the following is intended to be a common exchange format for logic problem settings. It is
thought to be a format that can easily be parsed such that it forms a compromise between the needs of the different groups.
Therefore, it is kept as simple as possible, in particular, the grammar of the language can be easily processed by some
In any case it will be necessary to provide tools that transform files from the present syntax into other standard formats
(e.g., Otter  or TPTP ) and vice versa. Currently we can (partly) transform Otter input files to DFG-Syntax files and
For the grammar defining the syntax, terminals are always underlined while non-terminals and meta-symbols are not.