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From: shull@cs.utep.edu (Srinandan)
Subject: How to prove du/dw_i >=  0?
Message-ID: <1994Oct3.183500.4395@cs.utep.edu>
Organization: CS Dept, University of Texas at El Paso
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Date: Mon, 3 Oct 1994 18:35:00 GMT
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Dear Netters,
	I have to prove the following in an adaptive fuzzy controller:
	
	I have the following relation:
 	
	
	   SIGMA(i=1 to N){w_i * DOF_i * B_i}
      u = --------------------------------
	   SIGMA(i=1 to N){w_i * DOF_i}

	I need to prove that "if B_i > u then du/dw_i >= 0"

Kindly can some one give some hints/or steps involved in proving the above.
Thanks in advance..

Srinandan.H.J
