Les exercices qui suivent demandent de montrer des choses simples mais obligent  dcomposer en tapes et  rflchir  chaque instant aux mthodes que l'on utilise et qui doivent ensuite se faire "sans rflchir". 

<div class="exercice"> <span class="exercice">Exercices de dduction (I):</span> <ul><li>\exercise{lang=fr&cmd=new&module=H4/analysis/dedineq0.fr&exo=fracx1&qcmlevel=3&Askcontext=0&Askresult=0}{Fraction simple}
</li><li>
\exercise{lang=fr&cmd=new&module=H4/analysis/dedineq0.fr&exo=invx2&qcmlevel=3&Askcontext=0&Askresult=0}{Inverse}
</li>
</ul>
</div>

<div class="exercice"> <span class="exercice">Exercices de dduction (II) :</span> 
\exercise{lang=fr&cmd=new&module=H5/analysis/dedineq.fr&exo=boundedsqr1&exo=boundedsqr2&exo=possqr1&exo=possqr2&exo=twosqr&exo=twosqrgiv&exo=twoprod&exo=fracx1&exo=fracx2&exo=fracx3&exo=crossfrac&exo=crossfrac2&exo=majsqr1b&exo=majsqr2&exo=majsqr2b&exo=majsqr3&exo=product&exo=sollin&exo=sumprod&exo=sumprodb&exo=sumprod2&exo=sumprod3a
&exo=sumprod3b&exo=sumprod3b2&qcmlevel=3&Askcontext=0&Askresult=0}{Un pot pourri d'ingalits  rsoudre}
</div>

<div class="exercice"> <span class="exercice">Exercices de dduction (III) :</span> 
\exercise{lang=fr&+cmd=new&+module=H6/analysis/dedbound.fr&+exo=fracbnd}
{Borner une fraction}
</div>