Theorem eltrans 36203

Description: Membership in the class of all transitive sets. (Contributed by Scott Fenton, 31-Mar-2012.)

Hypothesis

Ref	Expression
eltrans.1	⊢ 𝐴 ∈ V

Assertion

Ref	Expression
eltrans	⊢ (𝐴 ∈ Trans ↔ Tr 𝐴)

Proof of Theorem eltrans

Step	Hyp	Ref	Expression
1		df-trans 36169	. . 3 ⊢ Trans = (V ∖ ran (( E ∘ E ) ∖ E ))
2	1	eleq2i 2853	. 2 ⊢ (𝐴 ∈ Trans ↔ 𝐴 ∈ (V ∖ ran (( E ∘ E ) ∖ E )))
3		eltrans.1	. . 3 ⊢ 𝐴 ∈ V
4	3	dftr6 36065	. 2 ⊢ (Tr 𝐴 ↔ 𝐴 ∈ (V ∖ ran (( E ∘ E ) ∖ E )))
5	2, 4	bitr4i 280	1 ⊢ (𝐴 ∈ Trans ↔ Tr 𝐴)

Syntax hints:   ↔ wb 208   ∈ wcel 2141  Vcvv 3453   ∖ cdif 3901  Tr wtr 5206   E cep 5544  ran crn 5646   ∘ ccom 5649   Trans ctrans 36145

This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-3 8  ax-gen 1814  ax-4 1828  ax-5 1929  ax-6 1986  ax-7 2027  ax-8 2143  ax-9 2151  ax-ext 2733  ax-sep 5245  ax-pr 5389

This theorem depends on definitions:  df-bi 209  df-an 400  df-or 859  df-3an 1099  df-tru 1562  df-fal 1572  df-ex 1799  df-sb 2090  df-clab 2740  df-cleq 2753  df-clel 2836  df-ne 2957  df-rab 3414  df-v 3455  df-dif 3907  df-un 3909  df-in 3911  df-ss 3921  df-nul 4286  df-if 4480  df-sn 4582  df-pr 4584  df-op 4588  df-uni 4865  df-br 5100  df-opab 5162  df-tr 5207  df-eprel 5545  df-cnv 5653  df-co 5654  df-dm 5655  df-rn 5656  df-trans 36169

This theorem is referenced by:  dfon3  36204