Avoiding nested aura:if in aura:iteration

To understand this scenario, let's take an example component code. Let's name the component ifElseLadder. The component displays numbers in a nested manner.

The component code is as follows:

<aura:component >

    <aura:attribute name="truthy" type="Boolean" default="false"/>
    <aura:attribute name="innerCmpDisplay" type="Boolean" default="true"/>
    <aura:attribute name="arraySize" type="List" default="[]"/>

    <aura:handler name="init" value="{!this}" action="{!c.doInit}"/>

<aura:iteration items="1,2,3,4,5" var="item">
    <aura:if isTrue="{!v.truthy}">
        True 
        <aura:set attribute="else">
          <aura:iteration items="{!v.arraySize}" var="i">
            <aura:if isTrue="{!v.innerCmpDisplay}">
                <div>
                    {!i}
                </div>
                <aura:iteration items="{!v.arraySize}" var="j">
                    &lt...