diff options
Diffstat (limited to 'theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v')
| -rw-r--r-- | theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v index 5a0f590ba..bfbc063ce 100644 --- a/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v +++ b/theories/Numbers/Integer/SpecViaZ/ZSigZAxioms.v @@ -14,7 +14,7 @@ Module ZTypeIsZAxioms (Import ZZ : ZType'). Hint Rewrite spec_0 spec_1 spec_2 spec_add spec_sub spec_pred spec_succ - spec_mul spec_opp spec_of_Z spec_div spec_modulo spec_sqrt + spec_mul spec_opp spec_of_Z spec_div spec_modulo spec_square spec_sqrt spec_compare spec_eqb spec_ltb spec_leb spec_max spec_min spec_abs spec_sgn spec_pow spec_log2 spec_even spec_odd spec_gcd spec_quot spec_rem spec_testbit spec_shiftl spec_shiftr @@ -303,6 +303,13 @@ Proof. intros a b. red. now rewrite spec_pow_N, spec_pow_pos. Qed. +(** Square *) + +Lemma square_spec n : square n == n * n. +Proof. + now zify. +Qed. + (** Sqrt *) Lemma sqrt_spec : forall n, 0<=n -> |