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Theorem reachable-def

⊦ reachable(r, r0, H) ↔ (∃ x. path(r ' + x, H) ∧ (r ' + x).last = r0)

Type: An axiom
Validity: The proof is valid.
Features: nokodkodax,
Comment:
Used by: acyclic-rem-not-reachable, add-preserves-reachable, add-preserves-reachable-rev, changenonnxt-reachable, frommodified, fromnext-reachable, fromnext-reachable-rev, id-reachable, k-reachable-def, linearity, modified-stays-reachable, modnotreachable-reachable, modnotreachable-reachable-rev, modnotreachable-reachable-rev-weak, notnull-reachable, null-not-reachable, reach-alloc, reach-reachnext, reachable-addnew, reachable-addnew-rev, reachable-addnewtonull-rev, reachable-modbehind, reachable-nodups-def, reachable-split-first, reachable-split-last, reachable-trans, reachnext, rem-reachable, rem-reachable-rev-weak, rem-stays-reachable-aux, rem-stays-reachable-aux1, rem-stays-reachable-aux2, self-reachable, startnotinH-notreachable,
Used by units in proved state:
Proof exists?: No