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| Current File : /usr/home/beeson/public_html/michaelbeeson/research/FormalTarski/Proofs/Satz5.7.prf |
Length of proof is 1. Level of proof is 1. ---------------- PROOF ---------------- 13 [] E(xa,xb,xa,xb). 24 [] T(xa,xb,xb). 97 [] -T(xc,y,xd)| -E(xa,xb,xc,y)|le(xa,xb,xc,xd). 98 [] -le(a,b,a,b). 101 [ur,97,13,98] -T(a,b,b). 102 [binary,101.1,24.1] $F.