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| Current File : /usr/home/beeson/public_html/michaelbeeson/research/FormalTarski/Proofs/Satz3.3.prf |
Length of proof is 1. Level of proof is 1. ---------------- PROOF ---------------- 24 [] T(xa,xb,xb). 25 [] -T(xa,xb,xc)|T(xc,xb,xa). 26 [] -T(a1,a1,b1). 27 [binary,26.1,25.2] -T(b1,a1,a1). 28 [binary,27.1,24.1] $F.