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| Current File : /usr/home/beeson/public_html/michaelbeeson/research/FormalTarski/Proofs/Satz4.11e.prf |
Length of proof is 2. Level of proof is 1. ---------------- PROOF ---------------- 47 [] -Col(xa,xb,xc)|Col(xc,xa,xb). 49 [] -Col(xa,xb,xc)|Col(xb,xa,xc). 78 [] Col(a,b,c). 79 [] -Col(a,c,b). 83 [binary,78.1,47.1] Col(c,a,b). 88 [binary,79.1,49.2] -Col(c,a,b). 89 [binary,88.1,83.1] $F.