Lex Talionis (eye for eye, equal return...) is a principle which says that any ability given to one person must be given to all. For example, you couldnt reasonably defend that you have right to take my freedom away randomly while I dont have right to take yours away randomly.
What does this mean?
Abilities such as:
A. Ability to determine truth
B. Ability to determine moral truth
C. Ability to determine what is sufficient justification
Think about what this means in case of body ownership.
There are only two options:
1. Person can determine when other people lose body ownership
2. Person cannot determine when other people lose body ownership
Should 2 be given to one person, it would be given to all, and no contradiction would follow.
But if 1 were to be given to one person, per Lex Talionis, it would be given to all.
But then, a contradiction follows. If everyone has ability to deny everyone of body ownership, then no one can have body ownership.
Likewise, it doesnt matter which justification person uses to deny body ownership. The ability to determine sufficient justification would per Lex Talionis likewise be universal. So anyone could for any reason deny body ownership of anyone.
Because 1 is objectively false, only 2 can be true: person cannot determine when other people lose body ownership.
Because no one can take away body ownership from others, it follows that everyone has body ownership.This includes trans kids. In other words, they own their bodies, and thus can make modifications to their bodies at will.So if doctor approves, and parents provide money for surgery, it is not possible to logically deny trans kids of surgery.
Theorem: Body Ownership is logically Inalienable
Axioms / Principles
Principle of Equal Powers (PEP): Any ability given to one person must, by fairness, be given to all.
Types of Abilities: PEP covers all abilities.
Among the abilities covered by PEP are:
a. The ability to determine truth.
b. The ability to determine moral truth.
c. The ability to determine what counts as sufficient justification.
Definition of Ownership: To own X means no one else may rightfully remove X from the owner.
Proof Step 1. Consider body ownership.
There are two possible assignments of ability:
Case A: A person has the ability to decide when others lose body ownership.
Case B: A person does not have that ability.
Step 2. Suppose Case A is true.Then, by PEP, if one person can decide a justification for stripping body ownership, all people must have the same ability.
Step 3. If all people can decide what counts as sufficient justification, then: For any reason whatsoever, anyone could declare another person’s body ownership void. Since this ability is universal, everyone can simultaneously void everyone else’s ownership.
Step 4. If everyone can void everyone else’s ownership, then secure body ownership does not exist.
Contradiction: “ownership” cannot exist if no one can securely hold it (by Axiom 3).
Step 5. Therefore, Case A is impossible.
Step 6. By elimination, only Case B remains: no one has the ability to decide when others lose body ownership.
Step 7. From Case B, it follows that body ownership is inalienable: each person necessarily owns their own body, and this cannot be revoked by others.
Corollary: Application to Trans Kids
Ownership of one’s body includes authority to decide what to do with it, including medical choices. Denying a trans child the right to make medical decisions about their body would mean granting others the ability to decide when body ownership can be overridden. By the proof above, such a power cannot be selectively granted; if granted at all, it must be universal, which destroys ownership. Therefore, denying trans kids’ medical decisions on body ownership grounds is logically impossible.
From this, 3 axioms follow:
- Any justification my opponent uses to deny kids of body ownership must likewise include: A. Ability to deny body ownership, B. Ability to determine what counts as sufficient justification.
- Any justification my opponent uses can likewise be made invalid by anyone who also has ability to determine sufficient justification, but can also be extended further to justify taking ownership of all by anyone who has ability to determine sufficient justification.
- Should my opponent extend his argument to include "ability to determine who has ability", such would likewise be universal, and would yield self-contradiction.
Conclusion:
It is not logically possible to determine who has ability to deny body ownership of others, thus no one has such ability. Thus, all people own their bodies, and this includes trans kids.