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Proof step 4 from proof uninit-rec (previous step)

class = class ∨ class ∈ claset → initundone(class, st), ∀ class0. class0 ∈ claset → initundone(class0, st) ⊦ (class0 ∈ claset → initundone(class0, st)) ∧ initundone(class, st)

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 3:
class0 ∈ claset, initundone(class, st), ∀ class0. class0 ∈ claset → initundone(class0, st) ⊦ claset = ∅, # claset = 0, initundone(class0, st)

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPFORWARD : ⊦ claset ≠ ∅ → # claset ≠ 0], [CSIMPFORWARD : ⊦ class ∈ claset → claset ≠ ∅])]]