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Proof step 26 from proof projection-last-if (conclusion)

⊦ proj(tr + ev ', inevs) = ((inevs(ev) ⊃ proj(tr, inevs) + ev; proj(tr, inevs)))

Heuristic simplifier applied rule simplifier

And obtained the following new goals

Proof step 25:
⊦ proj(tr + ev ', inevs) = ((inevs(ev) ⊃ proj(tr, inevs) + ev '; proj(tr, inevs)))

Rule argument

[emptyarg]

Additional information

[[CONCRETESIMPRULES : ([CSIMPSEQ : ⊦ tr + ev = tr + ev '])]]