![]() |
Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
|
Mirrors > Home > MPE Home > Th. List > relssi | Structured version Visualization version GIF version |
Description: Inference from subclass principle for relations. (Contributed by NM, 31-Mar-1998.) |
Ref | Expression |
---|---|
relssi.1 | ⊢ Rel 𝐴 |
relssi.2 | ⊢ (⟨𝑥, 𝑦⟩ ∈ 𝐴 → ⟨𝑥, 𝑦⟩ ∈ 𝐵) |
Ref | Expression |
---|---|
relssi | ⊢ 𝐴 ⊆ 𝐵 |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | relssi.1 | . . 3 ⊢ Rel 𝐴 | |
2 | ssrel 5783 | . . 3 ⊢ (Rel 𝐴 → (𝐴 ⊆ 𝐵 ↔ ∀𝑥∀𝑦(⟨𝑥, 𝑦⟩ ∈ 𝐴 → ⟨𝑥, 𝑦⟩ ∈ 𝐵))) | |
3 | 1, 2 | ax-mp 5 | . 2 ⊢ (𝐴 ⊆ 𝐵 ↔ ∀𝑥∀𝑦(⟨𝑥, 𝑦⟩ ∈ 𝐴 → ⟨𝑥, 𝑦⟩ ∈ 𝐵)) |
4 | relssi.2 | . . 3 ⊢ (⟨𝑥, 𝑦⟩ ∈ 𝐴 → ⟨𝑥, 𝑦⟩ ∈ 𝐵) | |
5 | 4 | ax-gen 1798 | . 2 ⊢ ∀𝑦(⟨𝑥, 𝑦⟩ ∈ 𝐴 → ⟨𝑥, 𝑦⟩ ∈ 𝐵) |
6 | 3, 5 | mpgbir 1802 | 1 ⊢ 𝐴 ⊆ 𝐵 |
Colors of variables: wff setvar class |
Syntax hints: → wi 4 ↔ wb 205 ∀wal 1540 ∈ wcel 2107 ⊆ wss 3949 ⟨cop 4635 Rel wrel 5682 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1798 ax-4 1812 ax-5 1914 ax-6 1972 ax-7 2012 ax-8 2109 ax-9 2117 ax-ext 2704 |
This theorem depends on definitions: df-bi 206 df-an 398 df-tru 1545 df-ex 1783 df-sb 2069 df-clab 2711 df-cleq 2725 df-clel 2811 df-v 3477 df-in 3956 df-ss 3966 df-opab 5212 df-xp 5683 df-rel 5684 |
This theorem is referenced by: xpsspw 5810 oprssdm 7588 dftpos4 8230 enssdom 8973 idssen 8993 ttrcltr 9711 txuni2 23069 acycgr0v 34139 prclisacycgr 34142 txpss3v 34850 pprodss4v 34856 bj-idres 36041 xrnss3v 37242 aoprssdm 45910 |
Copyright terms: Public domain | W3C validator |