Finding Equivalent Resistance

The question asks to find the equivalent resistance of such a network of resistors. simulate this circuit – Schematic created using CircuitLab

I have managed to simplify it down to the following: simulate this circuit

Is there a way to find the equivalent resistance without the use of a delta-transform (as I do not believe those are allowed on this assignment). From a logical point of view since the left and right nodes of the 0.5 ohm resistor are at the same voltage, no current would flow through it and hence it would offer no resistance. Would the equivalent resistance then be the parallel connection of the 1 and 1.5 ohm resistor? or am I completely wrong.

Thank you in advance for your responses!

• It's correct: R3//short = short. But you shouldn't have wasted time in calculating the parallel of R6 and R7 - they are both shorted. – Sredni Vashtar Jun 18 '15 at 0:00
• so the correct answer is 0.6 ohms = 3/5 ohms? And thank you for your help :) – Filip Gajowniczek Jun 18 '15 at 0:07
• @FilipGajowniczek Yes, $0.6\Omega$. – Null Jun 18 '15 at 2:21

$$R3 || (R2 + (R4 || R5)) = 0.6 \Omega$$.