ProofByContradiction1Inclusion (python class)
See also
This section presents the ProofByContradiction1Inclusion python class.
This class models the inclusion of the proof-by-contradiction-1 inference-rule in the target theory-derivation.
Punctilious users do not need to instanciate objects from this class. In effect, the TheoryElaborationSequence class exposes the proof_by_contradiction_1 property, and instanciation is automatic when this property is accessed for the first time.