| Mathbox for Peter Mazsa |
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| Mirrors > Home > MPE Home > Th. List > Mathboxes > disjimres | Structured version Visualization version GIF version | ||
| Description: Disjointness condition for restriction. (Contributed by Peter Mazsa, 27-Sep-2021.) |
| Ref | Expression |
|---|---|
| disjimres | ⊢ ( Disj 𝑅 → Disj (𝑅 ↾ 𝐴)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | resss 5997 | . 2 ⊢ (𝑅 ↾ 𝐴) ⊆ 𝑅 | |
| 2 | 1 | disjssi 39907 | 1 ⊢ ( Disj 𝑅 → Disj (𝑅 ↾ 𝐴)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↾ cres 5657 Disj wdisjALTV 39294 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1827 ax-4 1841 ax-5 1944 ax-6 2001 ax-7 2042 ax-8 2148 ax-9 2156 ax-11 2196 ax-ext 2735 ax-sep 5252 ax-pr 5395 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-3an 1105 df-tru 1572 df-fal 1582 df-ex 1812 df-sb 2101 df-clab 2742 df-cleq 2755 df-clel 2839 df-ral 3081 df-rex 3091 df-rab 3417 df-v 3456 df-ss 3901 df-dif 4050 df-in 4094 df-un 4154 df-nul 4282 df-if 4486 df-sn 4589 df-pr 4591 df-op 4839 df-br 5107 df-opab 5171 df-id 5550 df-xp 5661 df-rel 5662 df-cnv 5663 df-co 5664 df-dm 5665 df-rn 5666 df-res 5667 df-coss 39576 df-cnvrefrel 39682 df-funALTV 39842 df-disjALTV 39865 |
| This theorem is used by: disjiminres 39927 disjimxrnres 39928 disjALTVidres 39931 |
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