Theorem ttceqi 37028

Description: Equality inference for transitive closure. (Contributed by Matthew House, 6-Apr-2026.)

Hypothesis

Ref	Expression
ttceqi.1	⊢ 𝐴 = 𝐵

Assertion

Ref	Expression
ttceqi	⊢ TC+ 𝐴 = TC+ 𝐵

Proof of Theorem ttceqi

Step	Hyp	Ref	Expression
1		ttceqi.1	. 2 ⊢ 𝐴 = 𝐵
2		ttceq 37027	. 2 ⊢ (𝐴 = 𝐵 → TC+ 𝐴 = TC+ 𝐵)
3	1, 2	ax-mp 5	1 ⊢ TC+ 𝐴 = TC+ 𝐵

This proof depends on syntax axioms:   = wceq 1569  TC+ cttc 37025

This proof depends on axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1824  ax-4 1838  ax-5 1939  ax-6 1996  ax-7 2037  ax-8 2144  ax-9 2152  ax-ext 2734

This proof depends on definitions:  df-bi 210  df-an 401  df-tru 1572  df-ex 1809  df-sb 2096  df-clab 2741  df-cleq 2754  df-clel 2837  df-rex 3089  df-v 3456  df-ss 3921  df-iun 4957  df-ttc 37026

This theorem is used by: (None)