building quotient from ideal to make it more explicit

examples/quotient.rs

@@ -3,19 +3,20 @@ use std::rc::Rc;
 use circuit_cas::circuit::dag::CircuitExt;
 use circuit_cas::circuit::quotient::QuotientCircuit;
 use circuit_cas::circuit::traits::Circuit;
+use circuit_cas::poly::ideal::{Generators, Ideal};
 use circuit_cas::var;
 
 fn main() {
     let x = var!("x");
     let nx = var!("x\u{0304}");
 
-    let idem = vec![
+    let idem: Ideal<_, Generators> = vec![
         1 * (&x ^ 2) - 1 * (&x ^ 1),
         1 * (&nx ^ 2) - 1 * (&nx ^ 1),
         1 * ((&x ^ 1) * (&nx ^ 1)) - 1 * (&x ^ 1),
-    ];
+    ].into();
 
-    let quotient: Rc<RefCell<QuotientCircuit>> = idem.into_iter().collect();
+    let quotient: Rc<RefCell<QuotientCircuit>> = idem.into();
 
     // Build x * x̄ + x in the DAG
     let xn   = quotient.var("x");