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| Mirrors > Home > ILE Home > Th. List > elv | GIF version | ||
| Description: Technical lemma used to shorten proofs. If a proposition is implied by 𝑥 ∈ V (which is true, see vex 2802), then it is true. (Contributed by Peter Mazsa, 13-Oct-2018.) |
| Ref | Expression |
|---|---|
| elv.1 | ⊢ (𝑥 ∈ V → 𝜑) |
| Ref | Expression |
|---|---|
| elv | ⊢ 𝜑 |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | vex 2802 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | elv.1 | . 2 ⊢ (𝑥 ∈ V → 𝜑) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝜑 |
| Colors of variables: wff set class |
| Syntax hints: → wi 4 ∈ wcel 2200 Vcvv 2799 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1493 ax-gen 1495 ax-ie1 1539 ax-ie2 1540 ax-8 1550 ax-4 1556 ax-17 1572 ax-i9 1576 ax-ial 1580 ax-ext 2211 |
| This theorem depends on definitions: df-bi 117 df-sb 1809 df-clab 2216 df-cleq 2222 df-clel 2225 df-v 2801 |
| This theorem is referenced by: xpiindim 4859 disjxp1 6388 ixpiinm 6879 ixpsnf1o 6891 eqsndc 7076 iunfidisj 7124 ssfii 7152 fifo 7158 dcfi 7159 omp1eomlem 7272 exmidomniim 7319 bcval5 10997 rexfiuz 11515 fsum2dlemstep 11960 fsumcnv 11963 fisumcom2 11964 fsumconst 11980 modfsummodlemstep 11983 fsumabs 11991 fprodcllemf 12139 fprod2dlemstep 12148 fprodcnv 12151 fprodcom2fi 12152 fprodmodd 12167 4sqleminfi 12935 ennnfonelemim 13010 topnfn 13292 ptex 13312 prdsvallem 13320 prdsval 13321 xpsff1o 13397 ismgm 13405 issgrp 13451 ismnddef 13466 isnsg 13754 fnmgp 13900 isrng 13912 isring 13978 dfrhm2 14133 znval 14615 iuncld 14804 txbas 14947 txdis 14966 xmetunirn 15047 xmettxlem 15198 xmettx 15199 gausslemma2dlem1a 15752 isuhgrm 15886 isushgrm 15887 isupgren 15910 upgrex 15918 isumgren 15920 isuspgren 15970 isusgren 15971 vtxdgfval 16047 pw1nct 16428 |
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