“In math, the backwards E, ∃, means there exists. ∈ means part of a set. A line through that ∉ means excluded from. Everyone ∃, but not everyone ∈. We all feel that, unless we ∈, we do not ∃.” — Katrina Vandenberg Copy Share Image
“In math, the backwards E, ∃, means there exists. ∈ means part of a set. A line through that ∉ means excluded from. Everyone… — Katrina Vandenberg Copy Share Image
