If he saw two white hats , he could have deduced that he was wearing a black hat .
If he saw two white hats , he could conclude that he was wearing a black hat .

Are these two sentences paraphrases of each other?
yes

Lydia Lawhead had at least one sibling , a sister , Mrs. Armstrong .
Lydia Lawhead had at least one sibling , one sister , Mrs. Armstrong .

Are these two sentences paraphrases of each other?
yes

There is some uncertainty as to whether Ruby Glaze , a singer with whom Kate McTell recorded in 1932 , is the same person as Willie McTell .
There is some uncertainty about whether Ruby Glaze , a singer with whom Willie McTell recorded 1932 , is the same person as Kate McTell .

Are these two sentences paraphrases of each other?
no

The transport activity is regulated by Ca , and the primary Ca sensor ( CBD1 ) is located in a transmembrane loop connecting two large cytoplasmatic helices .
Transport activity is regulated by Ca , and the primary Ca sensor ( CBD1 ) is located in a large cytoplasmic loop that connects two transmembrane helices .

Are these two sentences paraphrases of each other?
no