diff options
Diffstat (limited to 'theories/QArith')
| -rw-r--r-- | theories/QArith/Qreals.v | 22 |
1 files changed, 0 insertions, 22 deletions
diff --git a/theories/QArith/Qreals.v b/theories/QArith/Qreals.v index 3730bcd7f..2400055aa 100644 --- a/theories/QArith/Qreals.v +++ b/theories/QArith/Qreals.v @@ -187,25 +187,3 @@ rewrite Q2R_inv; auto. Qed. Hint Rewrite Q2R_plus Q2R_mult Q2R_opp Q2R_minus Q2R_inv Q2R_div : q2r_simpl. - -Section LegacyQField. - -(** In the past, the field tactic was not able to deal with setoid datatypes, - so translating from Q to R and applying field on reals was a workaround. - See now Qfield for a direct field tactic on Q. *) - -Ltac QField := apply eqR_Qeq; autorewrite with q2r_simpl; try field; auto. - -(** Examples of use: *) - -Let ex1 : forall x y z : Q, (x+y)*z == (x*z)+(y*z). -intros; QField. -Qed. - -Let ex2 : forall x y : Q, ~ y==0 -> (x/y)*y == x. -intros; QField. -intro; apply H; apply eqR_Qeq. -rewrite H0; unfold Q2R; simpl; field; auto with real. -Qed. - -End LegacyQField. |