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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 7434 exmidomniim 7481 bcval5 11201 hashmap 11268 hashfibclem 11282 hashf1lem2 11286 hashf1 11287 rexfiuz 11755 fsum2dlemstep 12201 fsumcnv 12204 fisumcom2 12205 fsumconst 12221 modfsummodlemstep 12224 fsumabs 12232 fprodcllemf 12380 fprod2dlemstep 12389 fprodcnv 12392 fprodcom2fi 12393 fprodmodd 12408 4sqleminfi 13176 ennnfonelemim 13315 topnfn 13598 ptex 13618 prdsvallem 13621 xpsff1o 13670 ismgm 13677 issgrp 13718 ismnddef 13731 isnsg 14005 gsumconstcmn 14166 prdsval 14173 fnmgp 14219 isrng 14233 isring 14304 dfrhm2 14461 znval 14971 iuncld 15216 txbas 15359 txdis 15378 xmetunirn 15459 xmettxlem 15610 xmettx 15611 logfac 15995 gausslemma2dlem1a 16177 isuhgrm 16312 isushgrm 16313 isupgren 16336 upgrex 16344 isumgren 16346 isuspgren 16398 isusgren 16399 vtxdgfval 16529 clwwlknon 16670 pw1nct 17033 |
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