A lemma (entry) may depend on lemmas (entries) below its position, but never on lemmas above its position. This means the list is a topological order of the dependency graph. An entry 'all subs proved' means that all used lemmas are (transitively) proved.
| Name: | Status: | Subs proved? | Used: |
|---|---|---|---|
| tr-fold-path | proved | all subs proved | trp-ignore-subtree, tr-unfold-path, |
| tr-unfold-path | proved | all subs proved | trp-branch-rec, trp-leaf, trp-base, |
| trp-ignore-subtree | proved | all subs proved | trp-branch-rec, trp-leaf, trp-base, |
| trp-base | axiom | ||
| trp-leaf | axiom | ||
| trp-branch-rec | axiom |