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Proof step 17 from proof compatarray-isarray-01 (conclusion)

⊦ is_array(r, st) ∧ (∀ i. 0 ≤ i ∧ i < st[r -- _length] .intval → compat(str, st[r -- i '], st[r -- _type] .type .type, st)) → compatarray(str, r, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 16:
is_array(r, st), ∀ i. ¬ i < 0 ∧ ¬ st[r -- _length] .intval ≤ i → compat(str, st[r -- i '], st[r -- _type] .type .type, st) ⊦ compatarray(str, r, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ ¬ i < j ↔ j ≤ i], [CSIMPSEQ : ⊦ ¬ i ≤ j ↔ j < i])]]