spass binary package in Ubuntu Bionic armhf

 SPASS is a saturation-based automated theorem prover for first-order logic with
 equality. It is unique due to the combination of the superposition calculus
 with specific inference/reduction rules for sorts (types) and a splitting rule
 for case analysis motivated by the beta-rule of analytic tableaux and the case
 analysis employed in the Davis-Putnam procedure. Furthermore, SPASS provides a
 sophisticated clause normal form translation.
 .
 This package consists of the SPASS/FLOTTER binary, documentation, and a small
 example collection. The tools collections contain the proof checker pcs, the
 syntax translators dfg2otter and dfg2tptp, and the ASCII pretty printer
 dfg2ascii.

Source package