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I'm using the Yoast plugin with wordpress and have noticed in my HTML I have duplicate meta data.

For example my header starts with 
<title>(title) </title<span><<br /><meta </span><span class="html-attribute-name">property</span><span>="</span><span class="html-attribute-value">og:site_name</span><span>" </span><span class="html-attribute-name">content</span><span>=<br /><span><meta </span><span class="html-attribute-name">property</span><span>="</span><span class="html-attribute-value">og:description</span><span>" </span><span class="html-attribute-name">content</span><span>=<br /><br /></span></span>Then I have the 'This site is optimised by Yoast" tagline followed by the same meta -<br /> <span><meta </span><span class="html-attribute-name">name</span><span>="</span><span class="html-attribute-value">description</span><span>" </span><span class="html-attribute-name">content=<br /><span> <meta </span><span class="html-attribute-name">property</span><span>="</span><span class="html-attribute-value">og:title</span><span>" content=<br /><span> <meta </span><span class="html-attribute-name">property</span><span>="</span><span class="html-attribute-value">og:description</span><span>" </span><span class="html-attribute-name">content=<br /><span> <meta </span><span class="html-attribute-name">property</span><span>="</span><span class="html-attribute-value">og:site_name</span><span>" </span><span class="html-attribute-name">content</span><span>=<br /><br /></span></span></span></span>Is this likely to cause problems with Google and is there a way to stop both wordpress and Yoast adding meta to the header. </p></title>

I can't figure the answer to this issue, on my blog I have a number of pages which each show snippets and an image for each blog entry,  these are called /recent-weddings/page/1 /2 /3 and so on. I'm getting duplicate page titles for these but can't find anywhere on Wordpress to set a unique title for them.

So http://www.weddingphotojournalist.co.uk/recent-weddings/…/2/ has the same title as http://www.weddingphotojournalist.co.uk/recent-weddings/…/3/

After the update mine seems to be using January 1st rather than the March 2nd update.

I'm getting duplicate content warnings from Moz for various slideshows on my posts and pages in Wordpress. It seems when I create a slideshow it exists as its own page and as these have no text Moz sees them as duplicates.

Here are some examples -

http://www.weddingphotojournalist.co.uk/?gallery_page=slideshow&pp_gallery_id=1331991312
Moz says is a duplicate of - 
http://www.weddingphotojournalist.co.uk/?gallery_page=slideshow&pp_gallery_id=1000144730

The second of those two slideshows is on this page -http://www.weddingphotojournalist.co.uk/menorca-wedding/  but also exists as the page above.

How can i avoid these being seen as duplicate content?