In https://metamath.tirix.org/mpests/df-inf, it shows, And if I mouse over the first sup, the url is actually https://metamath.tirix.org/mpests/df-inf. Showing it as ascii also reveal,
Assertion df-inf <https://metamath.tirix.org/mpeascii/df-inf#> |- inf ( A , B , R ) = sup ( A , B , `' R ) -- You received this message because you are subscribed to the Google Groups "Metamath" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion visit https://groups.google.com/d/msgid/metamath/9cbaf8ef-728f-47e0-8f5f-ece87dd65fdbn%40googlegroups.com.
