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Theorem oprabss 5928
Description: Structure of an operation class abstraction. (Contributed by NM, 28-Nov-2006.)
Assertion
Ref Expression
oprabss {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ ((V × V) × V)
Distinct variable group:   𝑥,𝑦,𝑧
Allowed substitution hints:   𝜑(𝑥,𝑦,𝑧)

Proof of Theorem oprabss
StepHypRef Expression
1 reloprab 5890 . . 3 Rel {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑}
2 relssdmrn 5124 . . 3 (Rel {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} → {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ (dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} × ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑}))
31, 2ax-mp 5 . 2 {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ (dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} × ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑})
4 reldmoprab 5927 . . . 4 Rel dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑}
5 df-rel 4611 . . . 4 (Rel dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ↔ dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ (V × V))
64, 5mpbi 144 . . 3 dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ (V × V)
7 ssv 3164 . . 3 ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ V
8 xpss12 4711 . . 3 ((dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ (V × V) ∧ ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ V) → (dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} × ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑}) ⊆ ((V × V) × V))
96, 7, 8mp2an 423 . 2 (dom {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} × ran {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑}) ⊆ ((V × V) × V)
103, 9sstri 3151 1 {⟨⟨𝑥, 𝑦⟩, 𝑧⟩ ∣ 𝜑} ⊆ ((V × V) × V)
Colors of variables: wff set class
Syntax hints:  Vcvv 2726  wss 3116   × cxp 4602  dom cdm 4604  ran crn 4605  Rel wrel 4609  {coprab 5843
This theorem was proved from axioms:  ax-mp 5  ax-1 6  ax-2 7  ax-ia1 105  ax-ia2 106  ax-ia3 107  ax-io 699  ax-5 1435  ax-7 1436  ax-gen 1437  ax-ie1 1481  ax-ie2 1482  ax-8 1492  ax-10 1493  ax-11 1494  ax-i12 1495  ax-bndl 1497  ax-4 1498  ax-17 1514  ax-i9 1518  ax-ial 1522  ax-i5r 1523  ax-14 2139  ax-ext 2147  ax-sep 4100  ax-pow 4153  ax-pr 4187
This theorem depends on definitions:  df-bi 116  df-3an 970  df-tru 1346  df-nf 1449  df-sb 1751  df-eu 2017  df-mo 2018  df-clab 2152  df-cleq 2158  df-clel 2161  df-nfc 2297  df-ral 2449  df-rex 2450  df-v 2728  df-un 3120  df-in 3122  df-ss 3129  df-pw 3561  df-sn 3582  df-pr 3583  df-op 3585  df-br 3983  df-opab 4044  df-xp 4610  df-rel 4611  df-cnv 4612  df-dm 4614  df-rn 4615  df-oprab 5846
This theorem is referenced by: (None)
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