Theorem trressn 39074

Description: Any class ' R ' restricted to the singleton of the class ' A ' (see ressn2 39071) is transitive, see also trrelressn 39206. (Contributed by Peter Mazsa, 16-Jun-2024.)

Assertion

Ref	Expression
trressn	⊢ ∀𝑥∀𝑦∀𝑧((𝑥(𝑅 ↾ {𝐴})𝑦 ∧ 𝑦(𝑅 ↾ {𝐴})𝑧) → 𝑥(𝑅 ↾ {𝐴})𝑧)

Proof of Theorem trressn

Step	Hyp	Ref	Expression
1		an3 671	. . . . 5 ⊢ (((𝑥 = 𝐴 ∧ 𝐴𝑅𝑦) ∧ (𝑦 = 𝐴 ∧ 𝐴𝑅𝑧)) → (𝑥 = 𝐴 ∧ 𝐴𝑅𝑧))
2		eqbrb 38778	. . . . . 6 ⊢ ((𝑥 = 𝐴 ∧ 𝑥𝑅𝑦) ↔ (𝑥 = 𝐴 ∧ 𝐴𝑅𝑦))
3		eqbrb 38778	. . . . . 6 ⊢ ((𝑦 = 𝐴 ∧ 𝑦𝑅𝑧) ↔ (𝑦 = 𝐴 ∧ 𝐴𝑅𝑧))
4	2, 3	anbi12i 639	. . . . 5 ⊢ (((𝑥 = 𝐴 ∧ 𝑥𝑅𝑦) ∧ (𝑦 = 𝐴 ∧ 𝑦𝑅𝑧)) ↔ ((𝑥 = 𝐴 ∧ 𝐴𝑅𝑦) ∧ (𝑦 = 𝐴 ∧ 𝐴𝑅𝑧)))
5		eqbrb 38778	. . . . 5 ⊢ ((𝑥 = 𝐴 ∧ 𝑥𝑅𝑧) ↔ (𝑥 = 𝐴 ∧ 𝐴𝑅𝑧))
6	1, 4, 5	3imtr4i 295	. . . 4 ⊢ (((𝑥 = 𝐴 ∧ 𝑥𝑅𝑦) ∧ (𝑦 = 𝐴 ∧ 𝑦𝑅𝑧)) → (𝑥 = 𝐴 ∧ 𝑥𝑅𝑧))
7		brressn 39070	. . . . . 6 ⊢ ((𝑥 ∈ V ∧ 𝑦 ∈ V) → (𝑥(𝑅 ↾ {𝐴})𝑦 ↔ (𝑥 = 𝐴 ∧ 𝑥𝑅𝑦)))
8	7	el2v 3470	. . . . 5 ⊢ (𝑥(𝑅 ↾ {𝐴})𝑦 ↔ (𝑥 = 𝐴 ∧ 𝑥𝑅𝑦))
9		brressn 39070	. . . . . 6 ⊢ ((𝑦 ∈ V ∧ 𝑧 ∈ V) → (𝑦(𝑅 ↾ {𝐴})𝑧 ↔ (𝑦 = 𝐴 ∧ 𝑦𝑅𝑧)))
10	9	el2v 3470	. . . . 5 ⊢ (𝑦(𝑅 ↾ {𝐴})𝑧 ↔ (𝑦 = 𝐴 ∧ 𝑦𝑅𝑧))
11	8, 10	anbi12i 639	. . . 4 ⊢ ((𝑥(𝑅 ↾ {𝐴})𝑦 ∧ 𝑦(𝑅 ↾ {𝐴})𝑧) ↔ ((𝑥 = 𝐴 ∧ 𝑥𝑅𝑦) ∧ (𝑦 = 𝐴 ∧ 𝑦𝑅𝑧)))
12		brressn 39070	. . . . 5 ⊢ ((𝑥 ∈ V ∧ 𝑧 ∈ V) → (𝑥(𝑅 ↾ {𝐴})𝑧 ↔ (𝑥 = 𝐴 ∧ 𝑥𝑅𝑧)))
13	12	el2v 3470	. . . 4 ⊢ (𝑥(𝑅 ↾ {𝐴})𝑧 ↔ (𝑥 = 𝐴 ∧ 𝑥𝑅𝑧))
14	6, 11, 13	3imtr4i 295	. . 3 ⊢ ((𝑥(𝑅 ↾ {𝐴})𝑦 ∧ 𝑦(𝑅 ↾ {𝐴})𝑧) → 𝑥(𝑅 ↾ {𝐴})𝑧)
15	14	gen2 1823	. 2 ⊢ ∀𝑦∀𝑧((𝑥(𝑅 ↾ {𝐴})𝑦 ∧ 𝑦(𝑅 ↾ {𝐴})𝑧) → 𝑥(𝑅 ↾ {𝐴})𝑧)
16	15	ax-gen 1822	1 ⊢ ∀𝑥∀𝑦∀𝑧((𝑥(𝑅 ↾ {𝐴})𝑦 ∧ 𝑦(𝑅 ↾ {𝐴})𝑧) → 𝑥(𝑅 ↾ {𝐴})𝑧)

Syntax hints:   → wi 4   ↔ wb 209   ∧ wa 400  ∀wal 1565   = wceq 1567  Vcvv 3463  {csn 4594   class class class wbr 5113   ↾ cres 5664

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1822  ax-4 1836  ax-5 1937  ax-6 1994  ax-7 2035  ax-8 2151  ax-9 2159  ax-ext 2741  ax-sep 5261  ax-pr 5405

This theorem depends on definitions:  df-bi 210  df-an 401  df-or 861  df-3an 1103  df-tru 1570  df-fal 1580  df-ex 1807  df-sb 2098  df-clab 2748  df-cleq 2761  df-clel 2844  df-ral 3086  df-rex 3096  df-rab 3424  df-v 3465  df-dif 3916  df-un 3918  df-in 3920  df-ss 3930  df-nul 4295  df-if 4493  df-sn 4595  df-pr 4597  df-op 4601  df-br 5114  df-opab 5178  df-xp 5668  df-res 5674

This theorem is referenced by:  trrelressn  39206