The violinist case (and all of its variants)
a. Fetus = person from moment of conception b. Abortion still often permissible even if fetus has right to life c. Kidnapped/plugged into violinist: analogous to rape i. Someone's right to use one's body as wished > right to life d.

You will die if you don't unplug from the violinist: analogous to mother's life in danger i. Not wrong to intentionally kill violinist by unplugging ii. Extreme view: always wrong to intentionally kill someone, not always wrong to merely let someone die 1. This disproves the extreme view

The Henry Fonda case (and all of its variants)
a.

Henry Fonda necessary to keep alive ? not req i. Right to life doesn't entitle one to bare min to keep one alive b. Right not to be killed (unjustly): original violinist case disproves this i. Also highlights weakness in conservative argument

The human spores case
a.

Analogous to consensual sex b. Intentionally opening window doesn't give burglar right to stay in your house c. Permissible to vacuum up human seeds even if you opened your windows i. Abortion sometimes permissible after consensual sex

Thomson's arguments that use the above cases
a. Abortion is sometimes permissible - not always, fetus's interests are still relevant: have right to life from conception, but sometimes right to use one's body > right to life
Summary
a.

Abortion is sometimes permissible - not always, fetus's interests are still relevant: have right to life from conception, but sometimes right to use one's body > right to life