Examining The Armlock to Triangle Connection.

Let's look at the connection between the Armlock and the Triangle.
Because of the close positioning of these two submissions, practicing linking them together is a practical strategy.
We can see through this video, one good set up is to make your opponent feel the release of pressure which brings him up, and sets him up for the triangle.
Obviously, if as you are applying the Armlock from the Mount, your opponent starts to rise up, you can switch to the Triangle as well.
This can also be applied from the guard.
When you go to apply an Armlock on your opponent inside your guard and he counters by firmly grabbing his own arm and coming forward to stack you.
You let go of the arm that you were trying to lock while grabbing his opposite arm just underneath the tricep area with a no thumb grip.
Depending on your opponent, who may pull his arm that you were attempting to lock out, which would inadvertently help you. If not you can still Triangle him with it in place.
Pull his arm across your body bringing him close, while wrapping your leg that's on his neck around his head.
Close the Triangle with your other leg to set him up off of his counter.
Another option is using the same arm you were going to lock.
From the guard again you are executing an Armlock.
As your opponent counters and stacks you, slip your foot in as in the video, bring it across the back of his head, close the Triangle with your other leg and again you've transitioned from Armlock to Triangle.