conditional proof of validity

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Thank you so much mam please try be active on YT cause I only understand logic from your channel and because of being in a rural area there's no quality education so thanks once again

sutapadas
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Number 4 logic ka 2nd premise V > ~ U aisa ho to fhir number 5 premise main Impl ~U>~V Aisa nahi hoga galat hain bo

supriyasutradhar