| Metamath Proof Explorer |
< Previous
Next >
Nearby theorems |
||
| Mirrors > Home > MPE Home > Th. List > nfeq | Structured version Visualization version GIF version | ||
| Description: Hypothesis builder for equality. (Contributed by NM, 21-Jun-1993.) (Revised by Mario Carneiro, 11-Aug-2016.) (Proof shortened by Wolf Lammen, 16-Nov-2019.) |
| Ref | Expression |
|---|---|
| nfnfc.1 | ⊢ Ⅎ𝑥𝐴 |
| nfeq.2 | ⊢ Ⅎ𝑥𝐵 |
| Ref | Expression |
|---|---|
| nfeq | ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | nfnfc.1 | . . . 4 ⊢ Ⅎ𝑥𝐴 | |
| 2 | 1 | a1i 11 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐴) |
| 3 | nfeq.2 | . . . 4 ⊢ Ⅎ𝑥𝐵 | |
| 4 | 3 | a1i 11 | . . 3 ⊢ (⊤ → Ⅎ𝑥𝐵) |
| 5 | 2, 4 | nfeqd 2933 | . 2 ⊢ (⊤ → Ⅎ𝑥 𝐴 = 𝐵) |
| 6 | 5 | mptru 1577 | 1 ⊢ Ⅎ𝑥 𝐴 = 𝐵 |
| Colors of variables: wff setvar class |
| This proof depends on syntax axioms: = wceq 1570 ⊤wtru 1571 Ⅎwnf 1816 Ⅎwnfc 2908 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1828 ax-4 1842 ax-5 1943 ax-6 2000 ax-7 2041 ax-9 2155 ax-10 2178 ax-11 2194 ax-12 2213 ax-ext 2733 |
| This proof depends on definitions: df-bi 210 df-an 402 df-or 862 df-tru 1573 df-ex 1813 df-nf 1817 df-cleq 2753 df-nfc 2910 |
| This theorem is used by: nfeq1 2938 nfeq2 2940 nfne 3059 raleqf 3342 rmoeq1f 3403 rabeqf 3446 csbhypf 3875 sbceqg 4370 nffn 6638 nffo 6795 fvmptd3f 7009 mpteqb 7013 fvmptf 7015 eqfnfv2f 7033 dff13f 7259 ovmpos 7568 ov2gf 7569 ovmpodxf 7570 ovmpodf 7576 eqerlem 8753 seqof2 14203 sumeq2ii 15860 sumss 15890 fsumadd 15906 fsummulc2 15950 fsumrelem 15974 prodeq1f 16075 prodeq2ii 16080 fprodmul 16127 fproddiv 16128 txcnp 23939 ptcnplem 23940 cnmpt11 23982 cnmpt21 23990 cnmptcom 23997 mbfeqalem1 25962 mbflim 25989 itgeq1f 26092 itgeqa 26134 dvmptfsum 26295 ulmss 26724 leibpi 27270 o1cxp 27302 lgseisenlem2 27703 nosupbnd1 28071 2ndresdju 33243 aciunf1lem 33256 deg1prod 34115 sigapildsys 34795 bnj1316 35450 bnj1446 35675 bnj1447 35676 bnj1448 35677 bnj1519 35695 bnj1520 35696 bnj1529 35700 subtr 37102 subtr2 37103 bj-sbeqALT 37812 poimirlem25 38564 iuneq2f 39089 mpobi123f 39095 mptbi12f 39099 dvdsrabdioph 43817 fphpd 43823 mnringmulrcld 45226 fvelrnbf 46035 refsum2cnlem1 46054 elrnmpt1sf 46204 choicefi 46214 axccdom 46235 uzublem 46440 fsumf1of 46586 fmuldfeq 46595 mccl 46610 climmulf 46616 climexp 46617 climsuse 46620 climrecf 46621 climaddf 46627 mullimc 46628 neglimc 46657 addlimc 46658 0ellimcdiv 46659 climeldmeqmpt 46678 climfveqmpt 46681 climfveqf 46690 climfveqmpt3 46692 climeldmeqf 46693 climeqf 46698 climeldmeqmpt3 46699 limsupubuzlem 46722 limsupequz 46733 dvnmptdivc 46948 dvmptfprod 46955 stoweidlem18 47028 stoweidlem31 47041 stoweidlem55 47065 stoweidlem59 47069 sge0iunmpt 47428 sge0reuz 47457 iundjiun 47470 hoicvrrex 47566 ovnhoilem1 47611 ovnlecvr2 47620 opnvonmbllem1 47642 vonioo 47692 vonicc 47695 smflim 47787 smfpimcclem 47817 smfpimcc 47818 cfsetsnfsetf 48128 ovmpordxf 49451 |
| Copyright terms: Public domain | W3C validator |