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Current File : /usr/home/beeson/public_html/michaelbeeson/research/FormalTarski/Proofs/Satz4.11d.prf

Length of proof is 2.  Level of proof is 1.
 
---------------- PROOF ----------------
 
47 [] -Col(xa,xb,xc)|Col(xc,xa,xb).
48 [] -Col(xa,xb,xc)|Col(xc,xb,xa).
77 [] Col(a,b,c).
78 [] -Col(b,a,c).
81 [binary,77.1,47.1] Col(c,a,b).
86 [binary,78.1,48.2] -Col(c,a,b).
87 [binary,86.1,81.1] $F.

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