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fix
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affeldt-aist committed May 22, 2023
1 parent 591adc0 commit b0276f9
Showing 1 changed file with 2 additions and 2 deletions.
4 changes: 2 additions & 2 deletions theories/prob_lang.v
Original file line number Diff line number Diff line change
Expand Up @@ -879,9 +879,9 @@ Lemma bernoulli_andE t U :
Proof.
rewrite /bernoulli_and 3!letin_sample_bernoulli/= /mand/= muleDr//= -muleDl//.
rewrite !muleA -addeA -muleDl// -!EFinM !onem1S/= -splitr mulr1.
have -> : (1 / 2 * (1 / 2) = 1 / 4 :> R)%R by rewrite mulf_div mulr1// -natrM.
have -> : (1 / 2 * (1 / 2) = 1 / 4%:R :> R)%R by rewrite mulf_div mulr1// -natrM.
rewrite /bernoulli/= measure_addE/= /mscale/= -!EFinM; congr( _ + (_ * _)%:E).
have -> : (1 / 2 = 2 / 4 :> R)%R.
have -> : (1 / 2 = 2 / 4%:R :> R)%R.
by apply/eqP; rewrite eqr_div// ?pnatr_eq0// mul1r -natrM.
by rewrite onem1S// -mulrDl.
Qed.
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