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| Mirrors > Home > MPE Home > Th. List > Mathboxes > brmptiunrelexpd | Structured version Visualization version GIF version | ||
| Description: If two elements are connected by an indexed union of relational powers, then they are connected via 𝑛 instances the relation, for some 𝑛. Generalization of dfrtrclrec2 14985. (Contributed by RP, 21-Jul-2020.) |
| Ref | Expression |
|---|---|
| brmptiunrelexpd.c | ⊢ 𝐶 = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ 𝑁 (𝑟↑𝑟𝑛)) |
| brmptiunrelexpd.r | ⊢ (𝜑 → 𝑅 ∈ V) |
| brmptiunrelexpd.n | ⊢ (𝜑 → 𝑁 ⊆ ℕ0) |
| Ref | Expression |
|---|---|
| brmptiunrelexpd | ⊢ (𝜑 → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| Step | Hyp | Ref | Expression |
|---|---|---|---|
| 1 | brmptiunrelexpd.r | . 2 ⊢ (𝜑 → 𝑅 ∈ V) | |
| 2 | brmptiunrelexpd.n | . . 3 ⊢ (𝜑 → 𝑁 ⊆ ℕ0) | |
| 3 | nn0ex 12411 | . . . 4 ⊢ ℕ0 ∈ V | |
| 4 | 3 | ssex 5267 | . . 3 ⊢ (𝑁 ⊆ ℕ0 → 𝑁 ∈ V) |
| 5 | 2, 4 | syl 17 | . 2 ⊢ (𝜑 → 𝑁 ∈ V) |
| 6 | brmptiunrelexpd.c | . . 3 ⊢ 𝐶 = (𝑟 ∈ V ↦ ∪ 𝑛 ∈ 𝑁 (𝑟↑𝑟𝑛)) | |
| 7 | 6 | briunov2 43990 | . 2 ⊢ ((𝑅 ∈ V ∧ 𝑁 ∈ V) → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| 8 | 1, 5, 7 | syl2anc 585 | 1 ⊢ (𝜑 → (𝐴(𝐶‘𝑅)𝐵 ↔ ∃𝑛 ∈ 𝑁 𝐴(𝑅↑𝑟𝑛)𝐵)) |
| Colors of variables: wff setvar class |
| Syntax hints: → wi 4 ↔ wb 206 = wceq 1542 ∈ wcel 2114 ∃wrex 3061 Vcvv 3441 ⊆ wss 3902 ∪ ciun 4947 class class class wbr 5099 ↦ cmpt 5180 ‘cfv 6493 (class class class)co 7360 ℕ0cn0 12405 ↑𝑟crelexp 14946 |
| 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-10 2147 ax-11 2163 ax-12 2185 ax-ext 2709 ax-rep 5225 ax-sep 5242 ax-nul 5252 ax-pr 5378 ax-un 7682 ax-cnex 11086 ax-1cn 11088 ax-addcl 11090 |
| This theorem depends on definitions: df-bi 207 df-an 396 df-or 849 df-3or 1088 df-3an 1089 df-tru 1545 df-fal 1555 df-ex 1782 df-nf 1786 df-sb 2069 df-mo 2540 df-eu 2570 df-clab 2716 df-cleq 2729 df-clel 2812 df-nfc 2886 df-ne 2934 df-ral 3053 df-rex 3062 df-reu 3352 df-rab 3401 df-v 3443 df-sbc 3742 df-csb 3851 df-dif 3905 df-un 3907 df-in 3909 df-ss 3919 df-pss 3922 df-nul 4287 df-if 4481 df-pw 4557 df-sn 4582 df-pr 4584 df-op 4588 df-uni 4865 df-iun 4949 df-br 5100 df-opab 5162 df-mpt 5181 df-tr 5207 df-id 5520 df-eprel 5525 df-po 5533 df-so 5534 df-fr 5578 df-we 5580 df-xp 5631 df-rel 5632 df-cnv 5633 df-co 5634 df-dm 5635 df-rn 5636 df-res 5637 df-ima 5638 df-pred 6260 df-ord 6321 df-on 6322 df-lim 6323 df-suc 6324 df-iota 6449 df-fun 6495 df-fn 6496 df-f 6497 df-f1 6498 df-fo 6499 df-f1o 6500 df-fv 6501 df-ov 7363 df-om 7811 df-2nd 7936 df-frecs 8225 df-wrecs 8256 df-recs 8305 df-rdg 8343 df-nn 12150 df-n0 12406 |
| This theorem is referenced by: brfvidRP 43996 brfvrcld 43999 brfvtrcld 44029 brfvrtrcld 44042 |
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