Disjunctive fallacies occur through missing disjuncts or nonexclusivity of options.

Evidence

In disjunctive arguments the fallacy consists of the imperfect disjunctive, either in the form of missing disjuncts or non-exclusivity (when one assumes that affirming one disjunct means that the other must be false when in fact it is possible for both to be true). — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 783

Categorization

• corroborated: 2 independent passages support this claim — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 783
• XREF: connects to: Denying the antecedent assumes that if P implies Q, then non-P implies non-Q. — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 940; A disjunctive syllogism requires mutually exclusive and collectively exhaustive alternatives — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 945; Legal errors frequently stem from failing to enumerate all alternatives correctly — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 948 (+4 more)

Broader Connections

• Fallacies in missing disjuncts stem from omitting alternative possibilities #corroborates (0.90) — Ruggero J. Aldisert, Agatha D. Aldisert, Logic for Lawyers- A Guide to Clear…, 976