thys/abacus.thy
2013-02-04 Christian Urban started with abacus section
2013-02-04 Christian Urban updated
2013-02-03 Christian Urban made uncomputable compatible with abacus
2013-01-30 Christian Urban theories
2013-01-23 Christian Urban small updates
2013-01-22 Christian Urban updated files
2013-01-20 Christian Urban new version of abacus
2013-01-18 Christian Urban updated to ITP and updated directories
2013-01-17 Christian Urban added abacus
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