Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
Mirrors > Home > MPE Home > Th. List > nfres | Structured version Visualization version GIF version |
Description: Bound-variable hypothesis builder for restriction. (Contributed by NM, 15-Sep-2003.) (Revised by David Abernethy, 19-Jun-2012.) |
Ref | Expression |
---|---|
nfres.1 | ⊢ Ⅎ𝑥𝐴 |
nfres.2 | ⊢ Ⅎ𝑥𝐵 |
Ref | Expression |
---|---|
nfres | ⊢ Ⅎ𝑥(𝐴 ↾ 𝐵) |
Step | Hyp | Ref | Expression |
---|---|---|---|
1 | df-res 5050 | . 2 ⊢ (𝐴 ↾ 𝐵) = (𝐴 ∩ (𝐵 × V)) | |
2 | nfres.1 | . . 3 ⊢ Ⅎ𝑥𝐴 | |
3 | nfres.2 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
4 | nfcv 2751 | . . . 4 ⊢ Ⅎ𝑥V | |
5 | 3, 4 | nfxp 5066 | . . 3 ⊢ Ⅎ𝑥(𝐵 × V) |
6 | 2, 5 | nfin 3782 | . 2 ⊢ Ⅎ𝑥(𝐴 ∩ (𝐵 × V)) |
7 | 1, 6 | nfcxfr 2749 | 1 ⊢ Ⅎ𝑥(𝐴 ↾ 𝐵) |
Colors of variables: wff setvar class |
Syntax hints: Ⅎwnfc 2738 Vcvv 3173 ∩ cin 3539 × cxp 5036 ↾ cres 5040 |
This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1713 ax-4 1728 ax-5 1827 ax-6 1875 ax-7 1922 ax-10 2006 ax-11 2021 ax-12 2034 ax-13 2234 ax-ext 2590 |
This theorem depends on definitions: df-bi 196 df-or 384 df-an 385 df-tru 1478 df-ex 1696 df-nf 1701 df-sb 1868 df-clab 2597 df-cleq 2603 df-clel 2606 df-nfc 2740 df-rab 2905 df-in 3547 df-opab 4644 df-xp 5044 df-res 5050 |
This theorem is referenced by: nfima 5393 nfwrecs 7296 frsucmpt 7420 frsucmptn 7421 nfoi 8302 prdsdsf 21982 prdsxmet 21984 limciun 23464 bnj1446 30367 bnj1447 30368 bnj1448 30369 bnj1466 30375 bnj1467 30376 bnj1519 30387 bnj1520 30388 bnj1529 30392 trpredlem1 30971 trpredrec 30982 wessf1ornlem 38366 limcperiod 38695 cncfiooicclem1 38779 stoweidlem28 38921 nfdfat 39859 setrec2lem2 42240 setrec2 42241 |
Copyright terms: Public domain | W3C validator |