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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 31061 | . 2 ⊢ 0ℎ ∈ ℋ | |
| 2 | 1 | elimel 4550 | 1 ⊢ if(𝐴 ∈ ℋ, 𝐴, 0ℎ) ∈ ℋ |
| Colors of variables: wff setvar class |
| Syntax hints: ∈ wcel 2114 ifcif 4480 ℋchba 30977 0ℎc0v 30982 |
| This theorem was proved from axioms: ax-mp 5 ax-1 6 ax-2 7 ax-3 8 ax-gen 1797 ax-4 1811 ax-5 1912 ax-6 1969 ax-7 2010 ax-8 2116 ax-9 2124 ax-ext 2709 ax-hv0cl 31061 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-ex 1782 df-sb 2069 df-clab 2716 df-cleq 2729 df-clel 2812 df-if 4481 |
| This theorem is referenced by: hvsubsub4 31118 hvnegdi 31125 hvsubeq0 31126 hvaddcan 31128 hvsubadd 31135 normlem9at 31179 normsq 31192 normsub0 31194 norm-ii 31196 norm-iii 31198 normsub 31201 normpyth 31203 norm3dif 31208 norm3lemt 31210 norm3adifi 31211 normpar 31213 polid 31217 bcs 31239 pjoc1 31492 pjoc2 31497 h1de2ci 31614 spansn 31617 elspansn 31624 elspansn2 31625 h1datom 31640 spansnj 31705 spansncv 31711 pjch1 31728 pjadji 31743 pjaddi 31744 pjinormi 31745 pjsubi 31746 pjmuli 31747 pjcjt2 31750 pjch 31752 pjopyth 31778 pjnorm 31782 pjpyth 31783 pjnel 31784 eigre 31893 eigorth 31896 lnopeq0lem2 32064 lnopunii 32070 lnophmi 32076 pjss2coi 32222 pjssmi 32223 pjssge0i 32224 pjdifnormi 32225 |
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