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Theorem maplet-null

⊦ ((r => znd * P))(zh) → r ≠ null

Type: A user defined theorem
Validity: The proof is valid.
Features: s, ls,
Comment:
Used by: btree-adrs, btree-istore-reduce-refed, btree-mark-dirty, btree-null-or-clean-below, btree-refed-subseteq-alladrs, btree-repl-dirty-address, btree-reset-root-frame, btree-ri-unique, btree-root-in-heap, btree-write-node, btree-write-other,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 0
Proof steps: 2
Used lemmas:
Used spec theorems:
- Used simplifier rules:
  - heap-sep/zheap/falseH
  - heap-sep/zheap/sep-com
  - heap-sep/zheap/sep-ass
  - heap-sep/zheap/false-sep
  - heap-sep/zheap/false-rev
  - maplet/zheap/map-null