Can someone please help me to understand how the function in 6.5 is realized. I do not understand how they obtain (w2 OR w3) term, are there some intermediate steps I am missing?
Thnak you.

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\(f(w_1,w_2,w_3)=\overline{w_1}w_3+w_2\overline{w_3}
f(w_1,w_2,w_3)=\overline{w_1}\cdot f(w_1=0,w2,w3)+w_1\cdot f(w_1=1,w2,w3)\)

Does sthis help?

 

yea i see it now, i had to work out another statement before I was able to see this. Thank you sir.