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Theorem validrefkeynotnull-union

⊦ validrefkeynotnull(str, rk, ty, st) ∧ (∃ st0. st1 = st0 ∪ st) → validrefkeynotnull(str, rk, ty, st1)

Type: A user defined theorem
Validity: The proof is valid.
Features:
Comment:
Used by: validrefkeynotnull-union-01,
Used by units in proved state:
Proof exists?: Yes

View the proof

Infos about the proof

Proved?: Yes
Interactions: 10
Proof steps: 19
Used lemmas: junkref-union, junkref-keyin, validref-def, validrefnotnull-def, validrefnotnull-notnull, validrefvalnotnull-def, validrefkeynotnull-def,
Used spec theorems:
- storefunsx/union-at-right-01
Used simplifier rules: