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Proof step 2 from proof ri-closed-gc (previous step)

# kx = # ax, new(ax, fs), ri-closed(ri, fs, ro), ri-cons(ri, fs), kx.toSet ⊆ dom ri ⊦ dups(ax), dups(kx), ri-closed(ri[kx, ax], fs[ax, fs[ri[kx]]], ro)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
# kx = # ax, new(ax, fs), ri-closed(ri, fs, ro), ri-cons(ri, fs), kx.toSet ⊆ dom ri ⊦ dups(kx), dups(ax), ri-closed(ri[kx, ax], fs[ax, fs[ri[kx]]], ro)

Proof step 2 from proof ri-closed-gc (previous step)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Rule argument

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