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| Mirrors > Home > HSE Home > Th. List > ifhvhv0 | Structured version Visualization version GIF version | ||
| Description: Prove if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ. (Contributed by David A. Wheeler, 7-Dec-2018.) (New usage is discouraged.) |
| Ref | Expression |
|---|---|
| ifhvhv0 | ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | ax-hv0cl 31145 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4544 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2136 ifcif 4474 ℋchba 31061 0ℎc0v 31066 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1809 ax-4 1823 ax-5 1924 ax-6 1981 ax-7 2022 ax-8 2138 ax-9 2146 ax-ext 2728 ax-hv0cl 31145 |
| This theorem depends on definitions: df-bi 209 df-an 399 df-or 857 df-ex 1794 df-sb 2085 df-clab 2735 df-cleq 2748 df-clel 2831 df-if 4475 |
| This theorem is referenced by: hvsubsub4 31202 hvnegdi 31209 hvsubeq0 31210 hvaddcan 31212 hvsubadd 31219 normlem9at 31263 normsq 31276 normsub0 31278 norm-ii 31280 norm-iii 31282 normsub 31285 normpyth 31287 norm3dif 31292 norm3lemt 31294 norm3adifi 31295 normpar 31297 polid 31301 bcs 31323 pjoc1 31576 pjoc2 31581 h1de2ci 31698 spansn 31701 elspansn 31708 elspansn2 31709 h1datom 31724 spansnj 31789 spansncv 31795 pjch1 31812 pjadji 31827 pjaddi 31828 pjinormi 31829 pjsubi 31830 pjmuli 31831 pjcjt2 31834 pjch 31836 pjopyth 31862 pjnorm 31866 pjpyth 31867 pjnel 31868 eigre 31977 eigorth 31980 lnopeq0lem2 32148 lnopunii 32154 lnophmi 32160 pjss2coi 32306 pjssmi 32307 pjssge0i 32308 pjdifnormi 32309 |
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