logic statements inside PDF's

[jamie]

I am trying to do this inside the PDF template, but no matter how I do it doesn't work, and the documentation is also very lacking on examples

<tr x-if-"{{and (notEqual cInvoiceType 'Delivery Note') (notEqual cInvoiceType 'Despatch Note')}}">
<td colspan="2"> alsdfjkaslfdjaslkjfklj</td>
</tr>

{{#if and (notEqual cInvoiceType 'Delivery Note') (notEqual cInvoiceType 'Despatch Note')}}

any one able to make 2 condtinal tests inside and if statment?

in php it would be

if( $this != 'that' && $that != 'this')