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theorem proved term proof

eventCount_pos

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formal statement (Lean)

 122theorem eventCount_pos (c : C) (U : Set C) (hU : U ∈ L.N c)
 123    (hfin : (r.R '' U).Finite) :
 124    0 < eventCount r U hfin := by

proof body

Term-mode proof.

 125  unfold eventCount
 126  have hc : c ∈ U := L.mem_of_mem_N c U hU
 127  have hne : (r.R '' U).Nonempty := ⟨r.R c, ⟨c, hc, rfl⟩⟩
 128  exact Finset.card_pos.mpr ((Set.Finite.toFinset_nonempty hfin).mpr hne)
 129
 130/-! ## Resolution Bound -/
 131
 132/-- Given a finite set of events, count them -/

depends on (14)

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