Close Scope CReal_scope.

(* Specifications: *)
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Lemma Rplus_comm : forall r1 r2:R, r1 + r2 = r2 + r1.
#[global]
Hint Resolve Rplus_comm: real.
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Lemma Rplus_assoc : forall r1 r2 r3:R, r1 + r2 + r3 = r1 + (r2 + r3).
#[global]
Hint Resolve Rplus_assoc: real.
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Lemma Rplus_opp_r : forall r:R, r + - r = 0.
#[global]
Hint Resolve Rplus_opp_r: real.
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Lemma Rplus_0_l : forall r:R, 0 + r = r.
#[global]
Hint Resolve Rplus_0_l: real.