Apply unknownprop_5a55ae6da060bd3592cd2518e6392e5786971bf34a92b383078bce38ef6a8408 with
ordsucc,
nat_p,
19 leaving 2 subgoals.
The subproof is completed by applying nat_ordsucc.
Apply unknownprop_e93a8c6aa6f443714903366c406c66ee5568ab35bb2d12e6033aa07bd1f73b7d with
ordsucc,
nat_p,
3 leaving 2 subgoals.
The subproof is completed by applying nat_ordsucc.
The subproof is completed by applying nat_3.