Added x≯y→x≤y and x≯Sy→x≯y∨x≡y.
Added x≯y→x≤y and x≯Sy→x≯y∨x≡y.

Ignore-this: 16c17edc23e20a123a8a592f9a8395d3

darcs-hash:20110512150517-3bd4e-5aa5e45866cc7b230be2b638456625569bfee25a.gz

asr/fotc,asr/fotc