[ { "well-founded induction" * } {
[ "wf1_ind_ylt" * ]
[ "wf1_ind_nlt" "wf2_ind_nlt" "wf3_ind_nlt.ma" * ]
+ [ "wf1_ind_plt" * ]
}
]
[ { "non-negative integers with infinity" * } {
}
]
[ { "positive integers" * } {
- [ "nat_lt ( ?<? )" "pnat_lt_pred" * ]
+ [ "nat_lt ( ?<? )" "pnat_lt_pred" "pnat_lt_plus" * ]
[ "pnat_le ( ?≤? )" "pnat_le_pred" "pnat_le_plus" * ]
[ "pnat_plus ( ?+? )" * ]
[ "nat_pred ( ↓? )" * ]