| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > reubidv | Structured version Visualization version GIF version | ||
| Description: Formula-building rule for restricted existential uniqueness quantifier (deduction form). (Contributed by NM, 17-Oct-1996.) |
| Ref | Expression |
|---|---|
| rmobidv.1 | ⊢ (𝜑 → (𝜓 ↔ 𝜒)) |
| Ref | Expression |
|---|---|
| reubidv | ⊢ (𝜑 → (∃!𝑥 ∈ 𝐴 𝜓 ↔ ∃!𝑥 ∈ 𝐴 𝜒)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | rmobidv.1 | . . 3 ⊢ (𝜑 → (𝜓 ↔ 𝜒)) | |
| 2 | 1 | adantr 486 | . 2 ⊢ ((𝜑 ∧ 𝑥 ∈ 𝐴) → (𝜓 ↔ 𝜒)) |
| 3 | 2 | reubidva 3379 | 1 ⊢ (𝜑 → (∃!𝑥 ∈ 𝐴 𝜓 ↔ ∃!𝑥 ∈ 𝐴 𝜒)) |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: → wi 4 ↔ wb 209 ∈ wcel 2144 ∃!wreu 3363 |
| 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 |
| This proof depends on definitions: df-bi 210 df-an 402 df-ex 1812 df-mo 2564 df-eu 2594 df-reu 3366 |
| This theorem is used by: reueqd 3399 sbcreu 3822 oawordeu 8566 xpf1o 9161 dfac2b 10212 creur 12317 creui 12318 divalg 16578 divalg2 16580 lubfval 18527 lubeldm 18530 lubval 18533 glbfval 18540 glbeldm 18543 glbval 18546 joineu 18559 meeteu 18573 dfod2 19783 ustuqtop 24570 addsq2reu 27772 addsqn2reu 27773 addsqrexnreu 27774 addsqnreup 27775 2sqreulem1 27778 2sqreunnlem1 27781 angmgmaddov1 29393 angmgmaddov2 29394 usgredg2vtxeuALT 29808 isfrgr 30866 frcond1 30872 frgr1v 30877 nfrgr2v 30878 frgr3v 30881 3vfriswmgr 30884 n4cyclfrgr 30897 eulplig 31092 riesz4 32671 cnlnadjeu 32685 poimirlem25 38656 poimirlem26 38657 hdmap1eulem 42972 hdmap1eulemOLDN 42973 hdmap14lem6 43023 reuf1odnf 48270 euoreqb 48272 isuspgrim0 49085 isuspgrimlem 49086 joindm3 50176 meetdm3 50178 upciclem1 50375 upfval2 50386 upfval3 50387 isuplem 50388 oppcup3lem 50415 isinito2lem 50726 |
| Copyright terms: Public domain | W3C validator |