Theorem eqbrtrdi 4132

Description: A chained equality inference for a binary relation. (Contributed by NM, 12-Oct-1999.)

Hypotheses

Ref	Expression
eqbrtrdi.1	⊢ (𝜑 → 𝐴 = 𝐵)
eqbrtrdi.2	⊢ 𝐵𝑅𝐶

Assertion

Ref	Expression
eqbrtrdi	⊢ (𝜑 → 𝐴𝑅𝐶)

Proof of Theorem eqbrtrdi

Step	Hyp	Ref	Expression
1		eqbrtrdi.2	. 2 ⊢ 𝐵𝑅𝐶
2		eqbrtrdi.1	. . 3 ⊢ (𝜑 → 𝐴 = 𝐵)
3	2	breq1d 4103	. 2 ⊢ (𝜑 → (𝐴𝑅𝐶 ↔ 𝐵𝑅𝐶))
4	1, 3	mpbiri 168	1 ⊢ (𝜑 → 𝐴𝑅𝐶)

Syntax hints:   → wi 4   = wceq 1398   class class class wbr 4093

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 106  ax-ia2 107  ax-ia3 108  ax-io 717  ax-5 1496  ax-7 1497  ax-gen 1498  ax-ie1 1542  ax-ie2 1543  ax-8 1553  ax-10 1554  ax-11 1555  ax-i12 1556  ax-bndl 1558  ax-4 1559  ax-17 1575  ax-i9 1579  ax-ial 1583  ax-i5r 1584  ax-ext 2213

This theorem depends on definitions:  df-bi 117  df-3an 1007  df-tru 1401  df-nf 1510  df-sb 1811  df-clab 2218  df-cleq 2224  df-clel 2227  df-nfc 2364  df-v 2805  df-un 3205  df-sn 3679  df-pr 3680  df-op 3682  df-br 4094

This theorem is referenced by:  eqbrtrrdi  4133  pm54.43  7438  recapb  8893  nn0ledivnn  10046  xltnegi  10114  leexp1a  10902  facwordi  11048  faclbnd3  11051  resqrexlemlo  11636  efap0  12301  dvds1  12477  en1top  14871  dvef  15521  rpabscxpbnd  15734  zabsle1  15801  lgseisen  15876  lgsquadlem2  15880  upgr2wlkdc  16301  trirec0  16759