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| Current File : /usr/home/beeson/public_html/michaelbeeson/research/FormalTarski/Proofs/Satz2.13.prf |
Length of proof is 1. Level of proof is 1. ---------------- PROOF ---------------- 3 [] -E(x,y,z,z)|x=y. 15 [] E(b,c,a,a). 16 [] b!=c. 24 [binary,15.1,3.1] b=c. 25 [binary,24.1,16.1] $F.