| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > nf5ri | Structured version Visualization version GIF version | ||
| Description: Consequence of the definition of not-free. (Contributed by Mario Carneiro, 11-Aug-2016.) (Proof shortened by Wolf Lammen, 15-Mar-2023.) |
| Ref | Expression |
|---|---|
| nf5ri.1 | ⊢ Ⅎ𝑥𝜑 |
| Ref | Expression |
|---|---|
| nf5ri | ⊢ (𝜑 → ∀𝑥𝜑) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nf5ri.1 | . . 3 ⊢ Ⅎ𝑥𝜑 | |
| 2 | 1 | nfri 1821 | . 2 ⊢ (∃𝑥𝜑 → ∀𝑥𝜑) |
| 3 | 2 | 19.23bi 2227 | 1 ⊢ (𝜑 → ∀𝑥𝜑) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ∀wal 1567 Ⅎwnf 1815 |
| 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 1942 ax-6 1999 ax-7 2040 ax-12 2212 |
| This proof depends on definitions: df-bi 210 df-ex 1812 df-nf 1816 |
| This theorem is used by: 19.3 2238 alimd 2248 alrimi 2249 eximd 2252 nexd 2257 albid 2258 exbid 2259 hbs1 2307 hba1 2326 hban 2333 hb3an 2334 nfal 2353 hbex 2355 nfsbv 2360 cbv3v 2364 cbv3 2426 equs45f 2488 nfs1 2517 sb6f 2526 hbsb 2553 hbab1 2747 nfsab 2750 nfsabg 2751 nfcrii 2917 ralrimi 3260 hbra1 3299 nfralw 3309 bnj1316 35500 bnj1379 35510 bnj1468 35526 bnj958 35620 bnj981 35630 bnj1014 35641 bnj1128 35670 bnj1204 35692 bnj1279 35698 bnj1398 35714 bnj1408 35716 bnj1444 35723 bnj1445 35724 bnj1446 35725 bnj1447 35726 bnj1448 35727 bnj1449 35728 bnj1463 35735 bnj1312 35738 bnj1518 35744 bnj1519 35745 bnj1520 35746 bnj1525 35749 bj-cbv2v 37834 bj-equs45fv 37847 mpobi123f 39231 |
| Copyright terms: Public domain | W3C validator |