We already have the biconditionalized version of this at https://us.metamath.org/mpeuni/elnnz1.html

There's a general rule here, which is written down in https://us.metamath.org/mpeuni/conventions.html in the paragraph starting "There are basically two ways to maximize the effectiveness of biconditional"

On 4/18/23 19:40, LM wrote:
what is most set.mm-fitting way to prove:

( ( A e. ZZ /\ 1 <_ A ) -> A e. NN )

?

Grepping through set.mm I only find " e. NN " on antecedent side, never on consequent side.
--
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 on the web visit https://groups.google.com/d/msgid/metamath/7a3251c5-87bd-4d95-9db0-6198cad47f43n%40googlegroups.com <https://groups.google.com/d/msgid/metamath/7a3251c5-87bd-4d95-9db0-6198cad47f43n%40googlegroups.com?utm_medium=email&utm_source=footer>.

--
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 on the web visit 
https://groups.google.com/d/msgid/metamath/7344c693-644d-4eaa-0e31-06065ce25af7%40panix.com.

Reply via email to