theorem
Q2Presentation.Lifting.op_eval_rconj_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(w g : GExpr)
(hw : Φ.op (w.eval q) = 1)
:
Conjugates of trivially-acting words act trivially.
theorem
Q2Presentation.Lifting.op_eval_mul_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(u v : GExpr)
(hu : Φ.op (u.eval q) = 1)
(hv : Φ.op (v.eval q) = 1)
:
Products of trivially-acting words act trivially.
theorem
Q2Presentation.Lifting.op_eval_inv_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(u : GExpr)
(hu : Φ.op (u.eval q) = 1)
:
Inverses of trivially-acting words act trivially.
theorem
Q2Presentation.Lifting.op_eval_comm_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(u v : GExpr)
(hu : Φ.op (u.eval q) = 1)
(hv : Φ.op (v.eval q) = 1)
:
Commutators of trivially-acting words act trivially.
theorem
Q2Presentation.Lifting.op_eval_x0_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(hx0 : Φ.op (q Gen.x0) = 1)
:
The x₀-word acts trivially.
theorem
Q2Presentation.Lifting.op_eval_x0g0_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(hx0 : Φ.op (q Gen.x0) = 1)
:
The conjugated x₀-factor acts trivially.
theorem
Q2Presentation.Lifting.op_eval_dg_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(hx0 : Φ.op (q Gen.x0) = 1)
(e : ℕ)
(heodd : Odd e)
(hTe : Φ.op (q Gen.tau) ^ e = 1)
(heY : e ∣ Nat.card Yt.Y)
:
The d_g-factor acts trivially.
theorem
Q2Presentation.Lifting.op_eval_d0sq_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(hx0 : Φ.op (q Gen.x0) = 1)
(e : ℕ)
(heodd : Odd e)
(hTe : Φ.op (q Gen.tau) ^ e = 1)
(heY : e ∣ Nat.card Yt.Y)
:
The d₀²-factor acts trivially.
theorem
Q2Presentation.Lifting.op_eval_hc_eq_one
{Yt : BoundaryFramedTarget}
[Finite Yt.Y]
{V : Type}
[AddCommGroup V]
[Module (ZMod 2) V]
(Φ : OperatorFamily Yt V)
(q : Marking Yt.Y)
(hx0 : Φ.op (q Gen.x0) = 1)
(e : ℕ)
(heodd : Odd e)
(hTe : Φ.op (q Gen.tau) ^ e = 1)
(heY : e ∣ Nat.card Yt.Y)
:
The h_c-factor acts trivially.