ftp://ftp.uic.nnov.ru/pub/Linux/Debian/debian/pool/main/o/otter/  direct

743.72 KB  2006-01-03otter_3.3f-1_i386.deb  info  browse  280+ mirrors
 otter - resolution-style theorem prover
 /Main/Debian/i386/math/

496.39 KB  2006-01-03mace2_3.3f-1_i386.deb  279+ mirrors
153.67 KB  2006-01-03formed_3.3f-1_i386.deb  info  browse  280+ mirrors
 formed - formula editor for first-order logic formulae
 /Main/Debian/i386/math/