A worthy competitor to Arihant. Old editions (2010–2015) are freely available legally via (check copyright status in your region).
https://drive.google.com/file/d/... – if it’s a random URL, close it.V key). Scroll to page 100. Is the content readable? Are the diagrams clear?Ctrl + F and type "Syllogism" or "Venn Diagram". If the search works, it's a text-based PDF (good). If search fails, it's a scanned image (bad for keywords).