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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 2805), 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 2805 | . 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 2202 Vcvv 2802 |
| 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 1495 ax-gen 1497 ax-ie1 1541 ax-ie2 1542 ax-8 1552 ax-4 1558 ax-17 1574 ax-i9 1578 ax-ial 1582 ax-ext 2213 |
| This theorem depends on definitions: df-bi 117 df-sb 1811 df-clab 2218 df-cleq 2224 df-clel 2227 df-v 2804 |
| This theorem is referenced by: xpiindim 4867 disjxp1 6400 ixpiinm 6892 ixpsnf1o 6904 modom 6993 eqsndc 7094 iunfidisj 7144 ssfii 7172 fifo 7178 dcfi 7179 omp1eomlem 7292 exmidomniim 7339 bcval5 11024 rexfiuz 11549 fsum2dlemstep 11994 fsumcnv 11997 fisumcom2 11998 fsumconst 12014 modfsummodlemstep 12017 fsumabs 12025 fprodcllemf 12173 fprod2dlemstep 12182 fprodcnv 12185 fprodcom2fi 12186 fprodmodd 12201 4sqleminfi 12969 ennnfonelemim 13044 topnfn 13326 ptex 13346 prdsvallem 13354 prdsval 13355 xpsff1o 13431 ismgm 13439 issgrp 13485 ismnddef 13500 isnsg 13788 fnmgp 13934 isrng 13946 isring 14012 dfrhm2 14167 znval 14649 iuncld 14838 txbas 14981 txdis 15000 xmetunirn 15081 xmettxlem 15232 xmettx 15233 gausslemma2dlem1a 15786 isuhgrm 15921 isushgrm 15922 isupgren 15945 upgrex 15953 isumgren 15955 isuspgren 16007 isusgren 16008 vtxdgfval 16138 clwwlknon 16279 pw1nct 16604 |
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