- The Method of Inversive Geometry:

We place a spherical cage in the desert and enter it. We then perform an inverse operation with respect to the cage. The lion is then inside the cage and we are outside.

- The Set Theoretic Method:

We observe that the desert is a separable space. It therefore contains an enumerable dense set of points from which can be extracted a sequence having the lion as the limit. We then approach the lion stealthily along this sequence bearing with us suitable equipment.

- Topological Method:

We observe that the lion has at least the connectivity of the torus. We transport the desert into four-space. It is then possible to carry out such a deformation that the lion can be returned to 3-space in a knotted condition. He is then helpless.

- The Dirac Method:

We observe that wild lions are ipso facto not observable in the Sahara desert. Consequently, if there are any lions in Sahara, then they are tame. The capture of a tame lion is left as an exercise for the reader.

- The Thermodynamic Method:

We construct a semi-permeable membrane which is permeable to everything except lions and sweep it across the desert.

- The Schrodinger Method:

At any given moment there is a positive probability that there is a lion in the cage. Sit down and wait.

- Heisenberg Method:

You will disturb the Lion when you observe it before capturing. So Keep your eyes closed.

- Einstein Method:

Run in the direction opposite to that of the lion. The relative velocity makes the lion run faster and hence it feels heavier and gets tired.