Section Sig_MONADIC_Sig_11.
Variable (Σ : fo_signature)
(HΣ1 : forall s, ar_syms Σ s <= 1)
(HΣ2 : forall r, ar_rels Σ r <= 1).

Theorem FSAT_FULL_MONADIC_FSAT_11 : FSAT Σ ⪯ᵢ FSAT (Σ11 (syms Σ) (rels Σ)).