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Proof step 4 from proof countdims-zero-04 (previous step)

0 < i, 0 < i0, countdims(ints0, i) ≤ 0, countdims(ints0, i) < i0, countdims(ints0, i) < i, ∀ i1. ¬ i1 ≤ 0 → 0 < countdims(ints0, i1) ⊦

User applied rule all left

And closed the goal!

Rule argument

[EXRARG : pos: left 6, [extquanttermlist: (i)abort:F, discard:F, computed:F]]

Additional information

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