Buying the ISO Prolog standard at a cheap price?

Hi guys,

A couple of decades ago I was able to buy the ISO Prolog standard at a cheap price as a one-time download link to a PDF document.

I am needing that again but I cannot find it anywhere, I can only find the product at full price, including on amazon.com.

Does anybody know if that old option at a cheap price still exists somewhere?

I asked grok to provide the table of contents of the iso prolog standard. It looks good. You could theoretically ask for every single Chapter step by step starting from this point. Grok refuses to print the complete standard.

LOL, that’s a good idea…