English: So, F is a field extension of Z mod p Z right, Z mod kernel phi is Z mod p Z is an injective it is sits inside F. Now, this is a field this is a field and what do we call such a situation where we have a field contained in another field that is what we call a field extension, so F is a field extension of Z mod p Z.
Telugu: కాబట్టి, F అనేది Z mod p Z యొక్క ఫీల్డ్ ఎక్స్‌టెన్షన్ , Z mod కెర్నల్ phi అనేది Z mod p Z అనేది ఒక ఇంజెక్టివ్(injective), ఇది F లోపల ఉంటుంది.