അതിനർത്ഥം, അവിടെ ഒരു I+J ഉണ്ട്. അതിനാൽ, a എന്നത് I ലുള്ള ഏതിൻറെയെങ്കിലും, J ലുള്ള ഏതിൻറെയെങ്കിലും തുകയാണ് എന്ന് നമുക്ക് എഴുതാം. അതിനർത്ഥം, I ഇന്റർസെക്ഷൻ J യുടെ ആർബിട്രറി റിംഗ് ഘടകത്തിൽ നിന്നാണ് നമ്മൾ എല്ലാം ആരംഭിച്ചത്. അത് I+J യിലാണെന്ന് നമ്മൾ നിഗമനം ചെയ്യുന്നു.
కాబట్టి, మేము a అనేది I లో ఉంది మరియు J లో ఉంది;మరియు మేము I ఇంటర్సెక్షన్ J యొక్క ఆర్బిటరీ ఎలిమెంట్ తో ప్రారంభించాము మరియు అది I ప్లస్ Jలో ఉందని మనం నిర్ధారించాము.