View source for Template:Ifparadef

{{#switch: {{{1|¬}}}
|   = {{{4| {{{2|}}} }}}   <!--Defined, empty. Must come before {{{1|}}}, since " " = " " -->
| ¬ = {{{3|}}}            <!--Not defined. Must come before {{{1|}}}, since ¬ = ¬ -->
| {{{1|}}} = {{{2|}}}    <!--Defined, not empty. {{{1}}} = {{{1}}} -->
}}<noinclude>

{{documentation}}
<!-- Add categories and interwikis to the /doc subpage, not here! -->
</noinclude>