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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 2824), 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 2824 | . 2 ⊢ 𝑥 ∈ V | |
| 2 | elv.1 | . 2 ⊢ (𝑥 ∈ V → 𝜑) | |
| 3 | 1, 2 | ax-mp 5 | 1 ⊢ 𝜑 |
| Colors of variables: wff set class |
| This proof depends on syntax axioms: → wi 4 ∈ wcel 2209 Vcvv 2821 |
| This proof depends on axioms: ax-mp 5 ax-1 6 ax-2 7 ax-ia1 106 ax-ia2 107 ax-ia3 108 ax-5 1500 ax-gen 1502 ax-ie1 1546 ax-ie2 1547 ax-8 1557 ax-4 1563 ax-17 1579 ax-i9 1583 ax-ial 1587 ax-ext 2220 |
| This proof depends on definitions: df-bi 117 df-sb 1816 df-clab 2225 df-cleq 2231 df-clel 2234 df-v 2823 |
| This theorem is used by: xpiindim 4917 disjxp1 6472 cnvimadfsn 6485 ixpiinm 7006 ixpsnf1o 7018 modom 7108 eqsndc 7210 iunfidisj 7260 ssfii 7308 fifo 7314 dcfi 7315 omp1eomlem 7435 exmidomniim 7482 bcval5 11217 hashmap 11284 hashfibclem 11298 hashf1lem2 11302 hashf1 11303 rexfiuz 11771 fiidxsupcl 12012 fsum2dlemstep 12220 fsumcnv 12223 fisumcom2 12224 fsumconst 12240 modfsummodlemstep 12243 fsumabs 12251 fprodcllemf 12399 fprod2dlemstep 12408 fprodcnv 12411 fprodcom2fi 12412 fprodmodd 12427 4sqleminfi 13199 ennnfonelemim 13367 topnfn 13651 ptex 13671 prdsvallem 13674 xpsff1o 13723 ismgm 13730 issgrp 13771 ismnddef 13784 isnsg 14058 gsumconstcmn 14250 prdsval 14257 fnmgp 14303 isrng 14317 isring 14388 dfrhm2 14545 znval 15055 iuncld 15307 txbas 15450 txdis 15469 xmetunirn 15550 xmettxlem 15701 xmettx 15702 logfac 16090 gausslemma2dlem1a 16343 isuhgrm 16478 isushgrm 16479 isupgren 16502 upgrex 16510 isumgren 16512 isuspgren 16564 isusgren 16565 vtxdgfval 16695 clwwlknon 16836 pw1nct 17199 |
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