... Y, but some chemists think Z causes Y. However, I think ... that Y causes X and Z.*
Here, "but" introduces ... Y. However, some chemists think Z causes Y. But my research ... that Y causes X and Z. Thus, neither these biologists nor ...
... also saying that Y and Z must be present together, then ... if X is present then Z is not present with it ... rules says that Y and Z must be together and that ...
... it as a biconditional W/Z. Because if W is in ... then Z is not and when W ... is not in, then Z is in. Now if there ... as a biconditional because when Z is out for example, you ... as /WZ or negate the Z and not the W. As ...
... . I'd accidentally left the Z group as closed out by ... in total (T, U, and Z) and another with 4 HR ... in total (T, U, W, Z) and could reveal the "at ...